Cyclone separator for powder recovery

Abstract

The present invention relates to a cyclone separator for powder recovery, comprising: multiple groups of separation cylinders; a storage hopper, which is connected and arranged at the bottom of the separation cylinder; a discharge assembly, wherein the discharge assembly comprises a connecting cylinder connected and arranged on the storage hopper, and the outer wall of the connecting cylinder is fixedly sleeved on a limit frame. The present invention drives the moving cylinder to move downward through a driving assembly. When the through hole one and the through hole two are disconnected, the sealing member will be separated from the necking during the downward movement of the moving cylinder, and the storage cavity will be opened. The powder inside the storage cavity falls into the bottom of the limit frame. Since the through hole one and the through hole two are disconnected, the airflow will not overflow in large quantities, and the powder falling into the bottom of the limit frame can be discharged without affecting the normal operation of the cyclone separator, so as to keep the cyclone separator in a sustainable working state as much as possible, which is conducive to improving the working efficiency of the cyclone separator.

Description

Technical Field

[0001] The present invention relates to the technical field of gas-solid separation, in particular to a cyclone separator for powder recovery. Background Art

[0002] The cyclone separator is a commonly used separation equipment. The working principle of the cyclone separator is that the rotational motion caused by the tangential introduction of the airflow causes the solid particles with large inertial centrifugal force to be thrown to the outer wall and separated. The separated solid particles are deposited in the lower part of the cyclone separator.

[0003] However, after a certain period of use, the cyclone separator in the existing technology needs to discharge the deposited solid particles in the cyclone separator. When the solid particles are discharged, the cyclone separator needs to be stopped, which affects the continuity of the cyclone separator's operation and thus affects the working efficiency of the cyclone separator. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a cyclone separator for powder recovery. The specific technical solution is as follows:

[0005] Cyclone separator for powder recovery, including:

[0006] Multiple sets of separation cylinders;

[0007] A storage hopper is connected to the bottom of the separation cylinder;

[0008] A discharging assembly includes a connecting cylinder connected to the storage hopper, the outer wall of the connecting cylinder is fixedly sleeved with a limit frame, an annular storage cavity is formed between the outer wall of the connecting cylinder and the inner wall of the limit frame, the bottom of the storage cavity is a constricted opening, and a through hole 1 connected to the storage cavity is opened on the connecting cylinder;

[0009] A moving assembly, comprising a moving cylinder movably plugged into the connecting cylinder, the moving cylinder being provided with a second through hole adapted to the first through hole, and a sealing member for sealing the shrinkage being provided on the surface of the moving cylinder and located below the material storage cavity;

[0010] The driving component is arranged at the bottom of the moving component, drives the moving cylinder to move up and down, and is used to control the connection or disconnection of the through hole 1 and the through hole 2.

[0011] The moving cylinder is driven downward by the driving assembly. When the through hole 1 and the through hole 2 are disconnected, the seal will be separated from the neck during the downward movement of the moving cylinder, the storage cavity will be opened, and the powder inside the storage cavity will fall into the bottom of the limit frame. Since the through hole 1 and the through hole 2 are disconnected, the airflow will not overflow in large quantities, and the powder that has fallen into the bottom of the limit frame can be discharged without affecting the normal operation of the cyclone separator, so as to keep the cyclone separator in a sustainable working state as much as possible, which is conducive to improving the working efficiency of the cyclone separator.

[0012] As an improvement of the above technical solution, the driving assembly includes a motor and a rotating shaft arranged at the output end of the motor, the rotating shaft is provided with cranks corresponding to the position and number of separation cylinders, the cranks located at the head and tail ends of the rotating shaft are arranged symmetrically with respect to the radial direction of the rotating shaft, and multiple groups of the cranks located between the head and tail ends are distributed on the rotating shaft at equal angular intervals along the axial direction of the rotating shaft, a fixed sleeve is rotatably provided on the crank, a connecting rod is provided on the fixed sleeve, the top of the connecting rod passes through the limit frame and extends to the inside of the limit frame, and the end of the connecting rod extending to the inside of the limit frame is rotatably connected to the bottom of the moving cylinder.

[0013] During the rotation of the rotating shaft, the crank drives the movable cylinder to move back and forth in the vertical direction through the cooperation of the fixed sleeve and the connecting rod. When the necking under one group of separation cylinders at the head and tail ends is in an open state, and the necking under the other group of separation cylinders at the head and tail ends is in a blocked state, during the rotation of the rotating shaft, the crank drives the movable cylinder to different positions through the connecting rod, so that the bottom of multiple groups of separation cylinders are in an alternating connected or disconnected state, so that the recovered powder is discharged in sequence, which is convenient for subsequent material collection.

[0014] As an improvement of the above technical solution, the sealing member includes a limiting plate fixedly arranged below the moving cylinder, a sealing plate movably sleeved on the surface of the moving cylinder and located below the connecting cylinder, and a spring wound between the sealing plate and the limiting plate on the surface of the moving cylinder.

[0015] In the initial state (i.e. the first stage), when the sealing plate blocks the necking, the spring is in a compressed state. Therefore, when the movable cylinder moves downward, through hole one and through hole two are in a connected state. In the process of gradually reducing the connected area, due to the restorative elastic force of the spring, the spring pushes the sealing plate to move upward, so the sealing plate can still block the necking until through hole one and through hole two are disconnected. At this time, the spring returns to a natural extension state (this is the second stage). When the movable cylinder continues to move downward, the movable cylinder will drive the sealing plate to separate from the necking. At this time, the storage cavity opens, and the powder inside the storage cavity falls downward and can be discharged (this is the third stage). When through hole one and through hole two are not completely disconnected, the storage cavity will not open, so there will be no airflow overflow, which can further enable the cyclone separator to maintain a sustainable working state, which is beneficial to improving the working efficiency of the cyclone separator.

[0016] As an improvement to the above technical solution, a conical block is provided inside the moving cylinder, and the diameter of the conical block gradually increases from top to bottom.

[0017] As an improvement of the above technical solution, a fixing rod is provided on the top of the conical block, the top of the fixing rod extends into the storage hopper, and one end of the fixing rod extending into the storage hopper is fixedly connected to a plug for sealing the bottom of the storage hopper.

[0018] As an improvement to the above technical solution, a discharge pipe is provided at the bottom of the limit frame.

[0019] As an improvement of the above technical solution, a feed pipe for tangential airflow is provided on the upper part of the separation cylinder to control the airflow to form a rotational motion in the separation cylinder, and an air outlet pipe is provided on the upper part of the separation cylinder to discharge the airflow upward.

[0020] Beneficial effects of the present invention:

[0021] The moving cylinder is driven downward by the driving assembly. When the through hole 1 and the through hole 2 are disconnected, the seal will be separated from the neck during the downward movement of the moving cylinder, the storage cavity will be opened, and the powder inside the storage cavity will fall into the bottom of the limit frame. Since the through hole 1 and the through hole 2 are disconnected, the airflow will not overflow in large quantities, and the powder that has fallen into the bottom of the limit frame can be discharged without affecting the normal operation of the cyclone separator, so as to keep the cyclone separator in a sustainable working state as much as possible, which is conducive to improving the working efficiency of the cyclone separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the overall structure of the present invention;

[0023] Figure 2 This is a structural schematic diagram of the present invention in which through hole 1 and through hole 2 are in a connected state;

[0024] Figure 3 This is a structural schematic diagram of the through hole 1 and the through hole 2 in the present invention in a disconnected state;

[0025] Figure 4 This is a structural schematic diagram of the material storage cavity in the present invention in an open state.

[0026] Figure numerals: 10, separation cylinder; 11, feed pipe; 12, air outlet pipe; 20, storage hopper; 30, limit frame; 31, discharge pipe; 32, connecting cylinder; 33, through hole 1; 40, motor; 41, crank; 42, connecting rod; 43, rotating shaft; 50, moving cylinder; 51, through hole 2; 52, conical block; 53, sealing plate; 54, spring; 55, plug. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] A cyclone separator for powder recovery, multiple groups of separation cylinders 10; a storage hopper 20, which is connected and arranged at the bottom of the separation cylinder 10; a discharging assembly, which includes a connecting cylinder 32 connected and arranged on the storage hopper 20, the outer wall of the connecting cylinder 32 is fixedly sleeved on the limit frame 30, and an annular storage cavity is formed between the outer wall of the connecting cylinder 32 and the inner wall of the limit frame 30, the bottom of the storage cavity is a necking, and a through hole 1 33 connected to the storage cavity is provided on the connecting cylinder 32; a moving assembly, which includes a moving cylinder 50 movably inserted into the connecting cylinder 32, and a through hole 2 51 adapted to the through hole 1 33 is provided on the moving cylinder 50, and a sealing member for sealing the necking is provided on the surface of the moving cylinder 50 and located below the storage cavity; a driving assembly, which is arranged at the bottom of the moving assembly, drives the moving cylinder 50 to move up and down, and is used to control the connection or disconnection of through hole 1 33 and through hole 2 51.

[0029] The air flow containing powder passes through the separation cylinder 10 for gas-solid separation, and the powder enters the storage hopper 20 through the bottom of the separation cylinder 10. In the initial state, the powder inside the storage hopper 20 can enter the inside of the moving cylinder 50, and the powder inside the moving cylinder 50 enters the storage cavity through the through hole 1 33 and the through hole 2 51 in turn. When the through hole 1 33 and the through hole 2 51 are connected, the seal will shrink and seal. At this time, the powder cannot be discharged, which can avoid the problem of poor gas-solid separation effect caused by air flow overflow. When the separated powder needs to be discharged, the drive component is driven, and the drive component drives the moving cylinder 50 to move downward. During the descent of the moving cylinder 50, the through hole The area of communication between through hole 1 33 and through hole 2 51 becomes smaller and smaller until through hole 1 33 and through hole 2 51 are disconnected. At this time, the seal will be separated from the necking during the downward movement of the movable cylinder 50, opening the storage cavity, and the powder inside the storage cavity falls into the bottom of the limit frame 30. Since through hole 1 33 and through hole 2 51 are disconnected, the airflow will not overflow in large quantities, and the powder that falls into the bottom of the limit frame 30 can be discharged without affecting the normal operation of the cyclone separator, so as to keep the cyclone separator in a sustainable working state as much as possible, which is beneficial to improving the working efficiency of the cyclone separator. Among them, multiple groups of separation cylinders 10 are arranged in parallel in the mounting frame.

[0030] In order to enable multiple sets of separation cylinders 10 to discharge the powder in sequence without affecting the subsequent material collection, refer to Figure 1 The driving assembly includes a motor 40 and a rotating shaft 43 arranged at the output end of the motor. The rotating shaft 43 is provided with cranks 41 corresponding to the position and number of the separation cylinder 10. The cranks 41 located at the head and tail ends of the rotating shaft 43 are arranged symmetrically 180° with respect to the radial direction of the rotating shaft 43. The multiple groups of cranks 41 located between the head and tail ends are distributed on the rotating shaft 43 at equal angles along the axial direction of the rotating shaft 43. A fixed sleeve is rotatably provided on the crank 41, and a connecting rod 42 is provided on the fixing sleeve. The top of the connecting rod 42 passes through the limit frame 30 and extends to the inside of the limit frame 30. One end of the connecting rod 42 extends to the inside of the limit frame 30 and is connected to the movable The bottom of the moving cylinder 50 is rotated and connected, and the motor 40 drives the rotating shaft 43 to rotate. During the rotation of the rotating shaft 43, the crank 41 drives the moving cylinder 50 to move back and forth in the vertical direction through the cooperation of the fixed sleeve and the connecting rod 42. When the necking under one group of separation cylinders 10 at the head and tail ends is in an open state, and the necking under the other group of separation cylinders 10 at the head and tail ends is in a blocked state, during the rotation of the rotating shaft 43, the crank 41 drives the moving cylinder 50 to different positions through the connecting rod 42, so that the bottom of multiple groups of separation cylinders 10 are in an alternating connected or disconnected state, so that the recovered powder is discharged in sequence, which is convenient for subsequent sequential material collection.

[0031] As the area of the through hole 1 33 and the through hole 2 51 becomes smaller and smaller, the shrinkage is separated from the seal and the storage cavity is opened. At this stage, a small amount of gas will overflow. In order to avoid the overflow of air flow, which makes the gas-solid separation effect inside the separation cylinder 10 worse, refer to Figure 2-Figure 4 The sealing member includes a limit plate fixedly arranged below the moving cylinder 50, and a sealing plate 53 is movably sleeved on the surface of the moving cylinder 50 and located below the connecting cylinder 32. A spring 54 is wound on the surface of the moving cylinder 50 and located between the sealing plate 53 and the limit plate. In the initial state (i.e., the first stage), when the sealing plate 53 blocks the shrinkage, the spring 54 is in a compressed state. Therefore, when the moving cylinder 50 moves downward, the through hole 1 33 and the through hole 2 51 are in a connected state. In the process of gradually reducing the connected area, due to the restorative elastic force of the spring 54, the spring 54 pushes the sealing plate 53 to move upward, so the sealing plate 5 3 can still seal the constriction until the through hole 1 33 and the through hole 2 51 are disconnected. At this time, the spring 54 returns to the natural extension state (this is the second stage). When the movable cylinder 50 continues to move downward, the movable cylinder 50 will drive the sealing plate 53 to separate from the constriction. At this time, the storage cavity is opened, and the powder inside the storage cavity falls downward and can be discharged (this is the third stage). When the through hole 1 33 and the through hole 2 51 are not completely disconnected, the storage cavity will not be opened, so that the airflow will not overflow, which can further keep the cyclone separator in a sustainable working state, which is conducive to improving the working efficiency of the cyclone separator.

[0032] In order to ensure that the powder entering the movable cylinder 50 can smoothly enter the storage cavity, refer to Figure 2 A conical block 52 is provided inside the moving cylinder 50. The diameter of the conical block 52 gradually increases from top to bottom. The powder can be guided through the conical block 52 to facilitate the powder to enter the second through hole 51 so as to reach the storage cavity.

[0033] In order to prevent the material inside the storage hopper 20 from continuing to enter the moving cylinder 50 when the through hole 1 33 and the through hole 2 51 are disconnected, Figure 4 A fixing rod is provided on the top of the conical block 52, and the top of the fixing rod extends into the interior of the storage hopper 20. One end of the fixing rod extending into the interior of the storage hopper 20 is fixedly connected to a plug 55 for sealing the bottom of the storage hopper 20. During the downward movement of the moving cylinder 50, the moving cylinder 50 can drive the plug 55 to descend through the fixing rod, so as to block the storage hopper 20, thereby preventing powder from continuously entering the moving cylinder 50 and causing powder to enter the gap between the moving cylinder 50 and the connecting cylinder 32, resulting in the problem of jamming of the moving cylinder 50 during movement.

[0034] In one embodiment, reference Figure 1A discharge pipe 31 is provided at the bottom of the limit frame 30 , and the material inside the limit frame 30 can be discharged from the discharge pipe 31 .

[0035] In one embodiment, reference Figure 1 The upper part of the separation cylinder 10 is provided with a feed pipe 11 for the tangential entry of the air flow, which is used to control the air flow to form a rotational motion in the separation cylinder 10. The upper part of the separation cylinder 10 is provided with an outlet pipe 12 for the air flow to be discharged upward. The air flow mixed with the powder enters the separation cylinder 10 tangentially from the feed pipe 11. The air flow forms a rotational motion in the separation cylinder 10. Under the action of centrifugal force, the solid particles are thrown to the cylinder wall of the separation cylinder 10. Once the separated particles contact the cylinder wall, they lose their inertia force, and the momentum of the downward axial velocity near the cylinder wall falls along the wall and enters the storage hopper. The rotating and descending external swirling airflow continuously flows into the central part of the separation cylinder 10 during the descent process, forming a centripetal radial airflow. This part of the airflow constitutes a rotating upward internal swirling flow, which is finally discharged through the outlet pipe 12.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Cyclone separator for powder recovery, characterized in that: include: Multiple sets of separation cylinders (10); A storage hopper (20) is connected to the bottom of the separation cylinder (10); A discharging assembly, the discharging assembly comprising a connecting cylinder (32) connected to the storage hopper (20), the outer wall of the connecting cylinder (32) being fixedly sleeved on the limiting frame (30), an annular storage cavity being formed between the outer wall of the connecting cylinder (32) and the inner wall of the limiting frame (30), the bottom of the storage cavity being a constricted opening, and a through hole (33) being connected to the storage cavity being provided on the connecting cylinder (32); A moving assembly, the moving assembly comprising a moving cylinder (50) movably plugged into the connecting cylinder (32), a second through hole (51) adapted to the first through hole (33) being provided on the moving cylinder (50), and a sealing member for sealing the shrinkage being provided on the surface of the moving cylinder (50) and located below the material storage cavity; The driving assembly is arranged at the bottom of the moving assembly, driving the moving cylinder (50) to move up and down, and is used to control the connection or disconnection of the through hole 1 (33) and the through hole 2 (51). The driving assembly drives the moving cylinder (50) to move downward. During the process of the moving cylinder (50) descending, the area of the connection between the through hole 1 (33) and the through hole 2 (51) becomes smaller and smaller until the through hole 1 (33) and the through hole 2 (51) are disconnected. At this time, the sealing member will be separated from the necking during the process of the moving cylinder (50) moving downward, and the storage cavity will be opened.

2. The cyclone separator for powder recovery according to claim 1, characterized in that: The driving assembly includes a motor (40) and a rotating shaft (43) arranged at the output end of the motor, the rotating shaft (43) is provided with cranks (41) corresponding to the position and number of the separation cylinders (10), the cranks located at the head and tail ends of the rotating shaft (43) are arranged symmetrically 180 degrees relative to the rotating shaft (43) in the radial direction, and multiple groups of the cranks (41) located between the head and tail ends are distributed on the rotating shaft (43) at equal angles along the axial direction of the rotating shaft (43), a fixed sleeve is rotatably provided on the crank (41), and a connecting rod (42) is provided on the fixing sleeve, the top of the connecting rod (42) passes through the limit frame (30) and extends to the inside of the limit frame (30), and one end of the connecting rod (42) extending to the inside of the limit frame (30) is rotatably connected to the bottom of the moving cylinder (50).

3. The cyclone separator for powder recovery according to claim 1, characterized in that: The sealing member comprises a limiting plate fixedly arranged below the moving cylinder (50); a sealing plate (53) is movably sleeved on the surface of the moving cylinder (50) and located below the connecting cylinder (32); and a spring (54) is wound on the surface of the moving cylinder (50) and located between the sealing plate (53) and the limiting plate.

4. The cyclone separator for powder recovery according to claim 3, characterized in that: A conical block (52) is provided inside the moving cylinder (50), and the diameter of the conical block (52) gradually increases from top to bottom.

5. The cyclone separator for powder recovery according to claim 4, characterized in that: A fixing rod is provided at the top of the conical block (52), the top of the fixing rod extending into the interior of the storage hopper (20), and one end of the fixing rod extending into the interior of the storage hopper (20) is fixedly connected to a plug (55) for sealing the bottom of the storage hopper.

6. The cyclone separator for powder recovery according to claim 1, characterized in that: A discharge pipe (31) is provided at the bottom of the limiting frame (30).

7. The cyclone separator for powder recovery according to claim 1, characterized in that: The upper portion of the separation cylinder (10) is provided with a feed pipe (11) for tangentially entering the airflow, which is used to control the airflow to form a rotational motion in the separation cylinder (10). The upper portion of the separation cylinder (10) is provided with an air outlet pipe (12) for upward discharge of the airflow.

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