Waste sand lifting and transporting device for precoated sand regeneration

Abstract

The utility model discloses a waste sand lifting and transporting device for precoated sand regeneration, which relates to the field of lifters for precoated sand regeneration, and comprises a shell, a feeding nozzle is welded below one side of the shell, a discharging nozzle is welded above the other side of the shell, the feeding nozzle and the discharging nozzle are communicated with the inside of the shell, and the discharging nozzle is communicated with the inside of the shell. A driving mechanism is installed at one end of the shell, a lifting mechanism connected with the driving mechanism is arranged in an inner cavity of the shell, and a speed regulating mechanism extending to an inner cavity of the discharging nozzle is installed at one end of the discharging nozzle. The driving mechanism comprises a rotating motor installed at one end of the shell through a support, a large belt pulley is fixedly installed at the output end of the rotating motor, and a transmission belt is in transmission connection with the periphery of the large belt pulley. By arranging the speed regulating mechanism, the purpose of regulating the discharge speed can be achieved, and the discharge speed of the precoated sand can be controlled according to the magnetic separation efficiency and function of the secondary magnetic separator, so that the secondary magnetic separation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevators for coated sand recycling, specifically a waste sand lifting and transportation device for coated sand recycling. Background Technology

[0002] The regeneration process of coated sand is as follows: the old coated sand is crushed and screened and then enters a magnetic separator for primary screening to remove iron filings. After that, the coated sand that has undergone primary magnetic separation is lifted by a bucket elevator and transported to another magnetic separator for secondary magnetic separation. After the coated sand has completed the regeneration process, the regenerated coated sand discharged from the fluidized bed cooling device is fed into a storage tank by a bucket elevator.

[0003] In the existing technology, when the coated sand that has undergone primary magnetic separation is conveyed to the secondary magnetic separator after being lifted, the discharge cannot be controlled. At this time, the coated sand entering the secondary magnetic separator is in a thick accumulation state. Therefore, during the secondary magnetic separation process, the iron filings present cannot be quickly magnetically attracted away. Utility Model Content

[0004] The purpose of this utility model is to provide a waste sand lifting and transportation device for coated sand recycling in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste sand lifting and transport device for coated sand recycling, comprising a shell, an inlet welded to the lower side of one side of the shell, an outlet welded to the upper side of the other side of the shell, the inlet and outlet being connected to the interior of the shell, a drive mechanism installed at one end of the shell, a lifting mechanism connected to the drive mechanism being provided in the inner cavity of the shell, and a speed regulating mechanism extending into the inner cavity of the outlet being installed at one end of the outlet;

[0006] The drive mechanism includes a rotary motor mounted on one end of the housing via a bracket. A large pulley is fixedly mounted on the output end of the rotary motor. A drive belt is driven to the outer periphery of the large pulley. A small pulley is driven to the inner periphery of the drive belt away from the large pulley. The small pulley is connected to the lifting mechanism.

[0007] As a further embodiment of this utility model: the lifting mechanism includes an active drive roller and a driven drive roller rotatably mounted in the inner cavity of the outer shell. The active drive roller and the driven drive roller are aligned and distributed in the vertical direction. The active drive roller and the driven drive roller are connected by a lifting belt. Multiple lifting buckets are circumferentially mounted at equal intervals on the outer periphery of the lifting belt. The shaft at one end of the active drive roller extends through to the outside of the outer shell and is coaxially and fixedly connected to the small belt pulley through a synchronous shaft.

[0008] As a further embodiment of this utility model: the speed regulating mechanism includes an inclined plate that is inclinedly welded to one side of the inner wall of the discharge nozzle, and an arc-shaped plate is formed at the bottom end of the inclined plate, with the end of the arc-shaped plate away from the inclined plate coinciding with the lowest quadrant point of its circumferential trajectory.

[0009] As a further embodiment of this utility model: the speed regulating mechanism further includes rotating plates rotatably mounted on both ends of the inner wall of the discharge nozzle. The outer periphery of the rotating plates is circumferentially formed with outwardly protruding plates. The outermost end of the plates is in contact with the inner diameter surface of the lifting belt. A speed regulating motor is installed at one end of the discharge nozzle. The shaft of one end of the rotating plate extends through to the outside of the discharge nozzle and is coaxially connected to the output shaft of the speed regulating motor through a coupling.

[0010] As a further embodiment of this utility model: the inner wall of the discharge nozzle is provided with an arc-shaped groove on the side away from the inclined plate, which allows the rotating plate to rotate. The diameter of the arc-shaped groove is equal to the inner diameter of the arc-shaped plate, and there is a channel between the end of the arc-shaped plate away from the inclined plate and the arc-shaped groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting a speed regulating mechanism, the discharge speed can be adjusted. The discharge speed of the coated sand can be controlled according to the magnetic separation efficiency and function of the secondary magnetic separator, thereby improving the secondary magnetic separation efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle.

[0016] In the diagram: 1. Outer shell; 2. Feed nozzle; 3. Discharge nozzle; 4. Rotary motor; 5. Large pulley; 6. Small pulley; 7. Drive belt; 8. Speed-regulating motor; 9. Driven drive roller; 10. Driven drive roller; 11. Lifting belt; 12. Lifting bucket; 13. Inclined plate; 14. Arc plate; 15. Rotating plate; 16. Channel; 17. Arc groove. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-3 In this embodiment of the present invention, a waste sand lifting and transport device for coated sand recycling includes a shell 1. A feed nozzle 2 is welded to the lower side of one side of the shell 1, and a discharge nozzle 3 is welded to the upper side of the other side of the shell 1. The feed nozzle 2 and the discharge nozzle 3 are connected to the interior of the shell 1. A drive mechanism is installed at one end of the shell 1, and a lifting mechanism connected to the drive mechanism is provided in the inner cavity of the shell 1. A speed regulating mechanism extending into the inner cavity of the discharge nozzle 3 is installed at one end of the discharge nozzle 3. The drive mechanism includes a rotary motor 4 mounted on one end of the shell 1 via a bracket. A large pulley 5 is fixedly installed at the output end of the rotary motor 4. A transmission belt 7 is driven to the outer periphery of the large pulley 5. A small pulley 6 is driven to the inner periphery of the transmission belt 7 away from the large pulley 5. The small pulley 6 is connected to the lifting mechanism.

[0019] In this embodiment: the recycled coated sand that has passed the crushing and magnetic separation once is poured into the feed nozzle 2. At this time, the driving mechanism drives the lifting mechanism to move the recycled coated sand upward. After the recycled coated sand rotates to the top, the lifting mechanism pours the recycled coated sand into the discharge nozzle 3 under centrifugal force. When the speed regulation mechanism is not running, the recycled coated sand accumulates in the discharge nozzle 3. Then, by starting the speed regulation mechanism, the running speed regulation mechanism will discharge the recycled coated sand in the discharge nozzle 3. This method can control the discharge speed of the recycled coated sand.

[0020] When the drive mechanism is running, the rotary motor 4 drives the large belt pulley 5 at its output end to rotate. The rotating large belt pulley 5 drives the small belt pulley 6 to rotate through the transmission belt 7. The rotating small belt pulley 6 drives the lifting mechanism to rotate. The running lifting mechanism can then lift the recycled coated sand upwards.

[0021] Please refer to this carefully. Figure 1 and Figure 2 The lifting mechanism includes an active drive roller 9 and a driven drive roller 10 rotatably mounted inside the housing 1. The active drive roller 9 and the driven drive roller 10 are aligned and distributed in the vertical direction. The active drive roller 9 and the driven drive roller 10 are connected by a lifting belt 11. Multiple lifting buckets 12 are circumferentially mounted at equal intervals on the outer periphery of the lifting belt 11. The shaft of one end of the active drive roller 9 extends through the outside of the housing 1 and is coaxially fixedly connected to the small belt pulley 6 through a synchronous shaft.

[0022] In this embodiment: the rotating small belt disc 6 drives the connected active drive roller 9 to rotate when it rotates. The active drive roller 9 drives the driven drive roller 10 to rotate through the lifting belt 11. At this time, the lifting belt 11 rotates along its extended distribution trajectory. The driven lifting belt 11 drives multiple lifting buckets 12 to move synchronously. When the opening of the lifting bucket 12 rotates to the lower position, it lifts the recycled coated sand that has entered the device upward. The recycled coated sand that has rotated to the highest point is then thrown out under centrifugal force and enters the discharge nozzle 3, thereby achieving the purpose of lifting the recycled coated sand.

[0023] Please refer to this carefully. Figure 2 and Figure 3 The speed regulating mechanism includes an inclined plate 13 welded to one side of the inner wall of the discharge nozzle 3. An arc-shaped plate 14 is formed at the bottom end of the inclined plate 13. The end of the arc-shaped plate 14 away from the inclined plate 13 coincides with the lowest quadrant point of its circumferential trajectory. The speed regulating mechanism also includes a rotating plate 15 rotatably installed at both ends of the inner wall of the discharge nozzle 3. The outer periphery of the rotating plate 15 is circumferentially formed with outwardly protruding plates. The outermost end of the plates is in contact with the inner diameter surface of the lifting belt 11. A speed regulating motor 8 is installed at one end of the outer side of the discharge nozzle 3. The shaft of one end of the rotating plate 15 passes through to the outside of the discharge nozzle 3 and is coaxially connected to the output shaft of the speed regulating motor 8 through a coupling. An arc-shaped groove 17 is opened on the side of the inner wall of the discharge nozzle 3 away from the inclined plate 13 for the rotating plate 15 to rotate. The diameter of the arc-shaped groove 17 is equal to the inner diameter of the arc-shaped plate 14. A channel 16 is formed between the end of the arc-shaped plate 14 away from the inclined plate 13 and the arc-shaped groove 17.

[0024] In this embodiment: After the recycled coated sand enters the discharge nozzle 3, the rotation speed of the speed-regulating motor 8 (a DC speed-regulating motor) is adjusted according to the subsequent secondary magnetic separation speed. Specifically, the rotation speed of the speed-regulating motor 8 is controlled by adjusting the voltage across the armature. The running speed-regulating motor 8 drives the rotating plate 15 to rotate, and the rotating plate 15 drives the outer plate to rotate. Since there is space between the adjacent plates for the recycled coated sand to enter, the rotating plate 15 drives the recycled coated sand to rotate during rotation. When the rotating recycled coated sand rotates to the bottom and aligns with the channel 16, it falls downwards. Due to the design of the inclined plate 13 and the arc plate 14, the recycled coated sand can only be discharged in the above manner and cannot fall directly downwards. Therefore, the discharge speed of the recycled coated sand can be controlled.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waste sand lifting and transport device for coated sand recycling, comprising a shell (1), characterized in that, A feed nozzle (2) is welded to the lower side of one side of the outer shell (1), and a discharge nozzle (3) is welded to the upper side of the other side of the outer shell (1). The feed nozzle (2) and the discharge nozzle (3) are connected to the interior of the outer shell (1). A drive mechanism is installed at one end of the outer shell (1), and a lifting mechanism connected to the drive mechanism is provided in the inner cavity of the outer shell (1). A speed regulating mechanism extending into the inner cavity of the discharge nozzle (3) is installed at one end of the discharge nozzle (3). The drive mechanism includes a rotary motor (4) mounted on one end of the housing (1) via a bracket. A large pulley (5) is fixedly mounted on the output end of the rotary motor (4). A transmission belt (7) is connected to the outer periphery of the large pulley (5). A small pulley (6) is connected to the inner periphery of the transmission belt (7) away from the large pulley (5). The small pulley (6) is connected to the lifting mechanism.

2. The waste sand lifting and transport device for coated sand recycling according to claim 1, characterized in that, The lifting mechanism includes an active drive roller (9) and a driven drive roller (10) rotatably mounted in the inner cavity of the outer shell (1). The active drive roller (9) and the driven drive roller (10) are aligned in the vertical direction. The active drive roller (9) and the driven drive roller (10) are connected by a lifting belt (11). Multiple lifting buckets (12) are circumferentially mounted at equal intervals on the outer periphery of the lifting belt (11). The shaft of one end of the active drive roller (9) extends through the outside of the outer shell (1) and is coaxially fixedly connected to the small belt pulley (6) through a synchronous shaft.

3. The waste sand lifting and transport device for coated sand recycling according to claim 2, characterized in that, The speed regulating mechanism includes an inclined plate (13) that is inclinedly welded to one side of the inner wall of the discharge nozzle (3). An arc-shaped plate (14) is formed at the bottom end of the inclined plate (13). The end of the arc-shaped plate (14) away from the inclined plate (13) coincides with the lowest quadrant point of its circular trajectory.

4. The waste sand lifting and transport device for coated sand recycling according to claim 3, characterized in that, The speed regulating mechanism also includes a rotating plate (15) rotatably mounted on both ends of the inner wall of the discharge nozzle (3). The outer periphery of the rotating plate (15) is circumferentially formed with outwardly protruding plates. The outermost end of the plates is in contact with the inner diameter surface of the lifting belt (11). A speed regulating motor (8) is installed at one end of the discharge nozzle (3). The shaft of one end of the rotating plate (15) extends through to the outside of the discharge nozzle (3) and is coaxially connected to the output shaft of the speed regulating motor (8) through a coupling.

5. The waste sand lifting and transport device for coated sand recycling according to claim 4, characterized in that, The inner wall of the discharge nozzle (3) is provided with an arc-shaped groove (17) on the side away from the inclined plate (13) for the rotating plate (15) to rotate. The diameter of the arc-shaped groove (17) is equal to the inner diameter of the arc-shaped plate (14). There is a channel (16) between the end of the arc-shaped plate (14) away from the inclined plate (13) and the arc-shaped groove (17).

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