A dynamic separator anti-blocking device

Abstract

The utility model provides a kind of dynamic separator anti-blocking device, it is related to coal mill separator anti-blocking technical field, including separator main body and the outlet pipeline of the separator main body one side setting, rectangular bar is rotatably connected with the inside center shaft position of outlet pipeline, and outlet pipeline air inlet end is fixedly installed with elastic cloth, the fixed mounting of filter screen is installed in the inner ring edge of elastic cloth, the rotation of rotating ring is realized by rectangular bar, when wedge passes through one of spherical rod, in the case where the position of inserting frame does not change, the contact of spherical rod and the bevel edge on wedge is used to realize that bearing overcomes the tension of spring rod and moves, while spring rod is elastically elongated, after spherical rod completely separates from wedge, bearing is reset by the elastic contraction of spring rod, that is, the shaking of filter screen can be realized, and by selecting the one side of filter screen outward convex towards separator main body, the surface of filter screen is blocked by coal powder or filtered coal powder, and the effect of filter screen is not affected.

Description

Technical Field

[0001] This utility model relates to the field of anti-clogging technology for coal mill separators, and in particular to a dynamic separator anti-clogging device. Background Technology

[0002] The coal mill separator is an important component of the coal mill, its main function being to separate coarse coal powder from the gas-powder mixture. To prevent clogging, an existing anti-clogging coal mill separator (publication number CN220803749U) places the coal powder particles to be separated into the main body of the coal mill separator. Airflow generated within the separator body agitates the coal powder particles, allowing those meeting the standards to pass through the separation filter and exit through the outlet pipe. Non-compliant particles accumulate at the bottom of the separator body. As the airflow passes through the outlet pipe, the fan blades rotate, causing the first mounting plate and first brush to rotate synchronously. The rotating first brush cleans the surface of the separation filter, preventing coal powder particles from adhering to its surface.

[0003] Because the first brush bristles are located on the filter surface of the separator screen, that is, inside the main body of the coal mill separator, some of the coal dust raised by the airflow will stick to the first brush bristles, affecting the softness of the first brush bristles, and thus affecting the cleaning effect of the first brush bristles on the separator screen. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a dynamic separator anti-clogging device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a dynamic separator anti-clogging device, comprising a separator body and an outlet pipe disposed on one side of the separator body, a rectangular rod rotatably connected to the central axis of the outlet pipe, and an elastic cloth fixedly installed at the air inlet end of the outlet pipe, a filter screen fixedly installed on the inner edge of the elastic cloth, the filter screen being conical in shape and a retaining ring fixedly installed on the inner edge of the filter screen, a bearing sleeved on the rectangular rod being installed on the inner edge of the retaining ring, and a plurality of spring rods being fixedly installed at the end of the retaining ring away from the separator body, a bracket coaxially disposed with the outlet pipe being fixedly installed at one end of the cylinder of the plurality of spring rods, a rotating ring sleeved on the rectangular rod being rotatably installed on the inner edge of the bracket, a wedge being fixedly installed on the edge of the rotating ring facing the bearing, and the plurality of spring rods being distributed in a ring array about the central axis of the rotating ring, and a spherical rod for sliding connection with the inclined side of the wedge being fixedly installed at the telescopic end of the spring rod.

[0006] Preferably, a plurality of electric push rods are fixedly installed at the end of the outlet pipe away from the separator body. The electric push rods extend and retract along the central axis of the outlet pipe, and the extension and retraction ends of the electric push rods are fixedly installed on the surface of the insert.

[0007] Preferably, an inlet fan is installed on the other side of the separator body, which is coaxially arranged with the outlet pipe. One end of the rectangular rod is rotatably connected to the outlet pipe port, and the other end of the rectangular rod is fixedly installed to the end of the inlet fan blade shaft.

[0008] Preferably, a baffle plate is fixedly installed inside the separator body above the outlet pipe. The baffle plate is conical and a switch valve is installed on the bottom edge of the baffle plate.

[0009] Preferably, an air outlet pipe is fixedly installed on the inner wall of the separator body near the bottom edge. The air outlet of the air outlet pipe is arranged in a ring shape and is coaxial with the separator body. The air inlet end of the air outlet pipe is connected to the air outlet of the inlet fan. The fan blade shaft of the inlet fan is rotatably connected to the wall of the air outlet pipe.

[0010] Preferably, a plurality of telescopic rods are fixedly installed at the bottom of the separator body, and the telescopic ends of the plurality of telescopic rods are upward and fixedly installed with a horizontal lifting plate.

[0011] Preferably, a T-shaped plate is fixedly installed at the center of the top edge of the lifting plate, the upper horizontal part of the T-shaped plate is frame-shaped, and a turntable is rotatably connected to the separator body near the frame-shaped part of the T-shaped plate. The edge of the turntable is provided with horizontal columnar protrusions, and the columnar protrusions are inserted into the inner wall of the frame-shaped part of the T-shaped plate.

[0012] Preferably, sprockets are installed on both the other end of the turntable and the rectangular rod, and the two sprockets are driven by a chain.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the rotation of a rectangular rod causes the rotating ring to drive the wedge block on its surface to rotate. When the wedge block passes one of the spherical rods, with the position of the insert bracket remaining unchanged, the bearing moves against the tension of the spring rod by the contact action between the spherical rod and the upper inclined edge of the wedge block. At the same time, the spring rod elastically extends. After the spherical rod completely disengages from the wedge block, the elastic contraction of the spring rod causes the bearing to drive the retaining ring to reset, thus realizing the filter screen shaking. Furthermore, by selecting the side of the filter screen that protrudes outward towards the separator body, the shaking of the filter screen causes the coal powder clogged on its surface or the filtered coal powder to fall off, without affecting the filter screen's performance.

[0014] 2. In this utility model, by rotating the turntable and using the columnar protrusions on the end face of the turntable to insert into the inner wall of the T-shaped plate frame, the T-shaped plate can drive the lifting plate to move up and down reciprocally as the turntable rotates. This allows the material piled on the lifting plate to be lifted, facilitating the exposure of internally mixed coal powder into the airflow under the action of airflow, and then entering the outlet pipe along with the airflow. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural schematic diagram of a dynamic separator anti-clogging device proposed in this utility model; Figure 2 is a cross-sectional view of the anti-clogging device for a dynamic separator proposed in this utility model, as shown in Figure 1. Figure 3 shows a dynamic separator anti-clogging device proposed in this utility model. Figure 2 A schematic diagram of the cross-sectional structure; Figure 4 is a cross-sectional view of the outlet pipe of a dynamic separator anti-clogging device proposed in this utility model. Figure 5 shows a dynamic separator anti-clogging device proposed in this utility model. Figure 4 A cross-sectional structural diagram.

[0016] Legend: 1. Separator body; 2. Inlet fan; 3. Outlet pipe; 4. Baffle; 5. Rectangular rod; 6. T-shaped plate; 7. Outlet duct; 8. Lifting plate; 9. Telescopic rod; 10. Turntable; 11. Sprocket; 12. Insert bracket; 13. Electric push rod; 14. Filter screen; 15. Elastic cloth; 16. Bearing; 17. Snap ring; 18. Spring rod; 19. Ball rod; 20. Rotating ring; 21. Wedge block. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] As shown in Figures 1-5, a dynamic separator anti-clogging device includes a separator body 1 and an outlet pipe 3 disposed on one side of the separator body 1. A rectangular rod 5 is rotatably connected to the central axis of the outlet pipe 3, and an elastic cloth 15 is fixedly installed at the air inlet end of the outlet pipe 3. A filter screen 14 is fixedly installed on the inner edge of the elastic cloth 15. The filter screen 14 is conical, and a retaining ring 17 is fixedly installed on the inner edge of the filter screen 14. A bearing 16 sleeved on the rectangular rod 5 is installed on the inner edge of the retaining ring 17, and several spring rods 18 are fixedly installed on the end of the retaining ring 17 away from the separator body 1. The bearing 16 is a commonly available sealed bearing. By sliding the bearing 16 left and right along the surface of the rectangular rod 5, the side of the filter screen 14 facing the separator body 1 can be either convex or concave. When convex, the elastic expansion and contraction of the elastic cloth 15 causes the filter screen 14 to move back and forth, thus shaking it, thereby achieving the desired effect. The surface blockage is shaken off; when it is concave, the residence time of the blown material in the filter screen 14 can be extended, and the shaking of the filter screen 14 can loosen the coal powder and allow it to be discharged and collected through the filter screen 14. A plurality of spring rods 18 are fixedly mounted at one end of the cylinder body with a bracket 12 coaxially arranged with the outlet pipe 3. A rotating ring 20 fitted on a rectangular rod 5 is rotatably mounted on the inner edge of the bracket 12. A wedge 21 is fixedly mounted on the edge of the rotating ring 20 facing the bearing 16. The plurality of spring rods 18 are arranged in a ring array about the central axis of the rotating ring 20, and a spherical rod 19 for sliding connection with the inclined side of the wedge 21 is fixedly mounted at the telescopic end of the spring rods 18. A plurality of electric push rods 13 are fixedly mounted at the end of the outlet pipe 3 away from the separator body 1. The electric push rods 13 extend and retract along the central axis of the outlet pipe 3, and the telescopic end of the electric push rods 13 is fixedly mounted on the surface of the bracket 12. The extension and retraction of the electric push rods 13 realizes the left and right movement of the bracket 12, so that the bearing 16 can slide left and right along the surface of the rectangular rod 5 under the connecting action of the spring rods 18. In addition, in order to realize the shaking of the filter screen 14, the rotation of the rectangular rod 5 can drive the bearing 16 relative to the retaining ring 17. The rotation of the rotating ring 20 relative to the insert 12, with the insert 12 in a fixed position, drives the wedge 21 to rotate. When the wedge 21 passes any end of the spherical rod 19, the spherical rod 19 slides along the inclined surface of the wedge 21. When it moves from the lower part of the inclined surface to the higher part, the spherical rod 19 drives the spring rod 18 to elastically extend, thereby enabling the bearing 16 to drive the retaining ring 17 to move. When the wedge 21 moves to the point where the spherical rod 19 is misaligned, the elastic contraction of the spring rod 18 enables the bearing 16 to drive the retaining ring 17 to reset, thus achieving the shaking of the filter screen 14.

[0020] Additionally: On the other side of the separator body 1, an inlet fan 2 is installed, which is coaxially arranged with the outlet pipe 3. One end of the rectangular rod 5 is rotatably connected to the port of the outlet pipe 3, and the other end of the rectangular rod 5 is fixedly installed to the end of the fan blade shaft of the inlet fan 2. The airflow generated by the inlet fan 2 is used to lift the coal powder, and at the same time, the inlet fan 2 drives the rectangular rod 5 to rotate.

[0021] For convenient feeding: A baffle 4 is fixedly installed inside the separator body 1 above the outlet pipe 3. The baffle 4 is conical and a switch valve is installed on the bottom edge of the baffle 4. The switch valve can be a common gate valve or other types of valve. The material to be separated is put into the baffle 4 from the feed port at the top of the separator body 1 for temporary collection. Then the feed port of the separator body 1 is closed. After the material in the separator body 1 is separated, the switch valve is opened to allow the material on the upper side of the baffle 4 to fall and be separated.

[0022] To accelerate the separation of pulverized coal: an air outlet pipe 7 is fixedly installed on the inner wall of the separator body 1 near the bottom edge. The air outlet of the air outlet pipe 7 is arranged in a ring shape and is coaxial with the separator body 1. The air inlet of the air outlet pipe 7 is connected to the air outlet of the inlet fan 2. The fan blade shaft of the inlet fan 2 is rotatably connected to the wall of the air outlet pipe 7. Figure 2 The air outlet duct 7 can directly blow airflow to the surrounding area of ​​the material, causing the coal dust in the material to be lifted. Several telescopic rods 9 are fixedly installed at the bottom inside the separator body 1. The telescopic ends of the telescopic rods 9 are upward and fixedly installed with a horizontal lifting plate 8. A T-shaped plate 6 is fixedly installed at the center of the top edge of the lifting plate 8. The horizontal part above the T-shaped plate 6 is frame-shaped, and a turntable 10 is rotatably connected to the frame-shaped part of the T-shaped plate 6 inside the separator body 1. The edge of the turntable 10 is set with horizontal columnar protrusions, and the columnar protrusions are inserted into the inner wall of the frame-shaped part of the T-shaped plate 6. A sprocket 11 is installed on the other end of the turntable 10 and on the rectangular rod 5. The two sprockets 11 are driven by a chain. In addition, when the rectangular rod 5 rotates, the sprocket 11 on its surface will rotate. Under the action of the chain, the sprocket 11 on the turntable 10 will rotate, thereby realizing the rotation of the turntable 10. By using the columnar protrusion on the end face of the turntable 10 to insert into the inner wall of the frame portion of the T-shaped plate 6, the T-shaped plate 6 can drive the lifting plate 8 to move up and down reciprocally as the turntable 10 rotates, thereby lifting the material accumulated on the lifting plate 8, which facilitates the blowing up of the internally mixed coal powder under the action of airflow.

[0023] Working principle: The material falls to the surface of the lifting plate 8 through the switch valve on the partition plate 4. The airflow generated by the start of the fan 2 blows onto the surface of the material through the air outlet pipe 7. With the reciprocating rise and fall of the lifting plate 8, the material is continuously lifted. Coal powder mixed in the material enters the outlet pipe 3 under the action of airflow. Under the filtration of the filter screen 14 in the outlet pipe 3, unqualified coal powder or coal lumps are intercepted, while qualified coal powder particles are discharged.

[0024] The wiring diagrams of the switching valve, separator body 1, inlet fan 2, and electric push rod 13 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the switching valve, separator body 1, inlet fan 2, and electric push rod 13 will not be explained in detail.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dynamic separator anti-clogging device, comprising a separator body (1) and an outlet pipe (3) disposed on one side of the separator body (1), characterized in that: A rectangular rod (5) is rotatably connected to the central axis of the outlet pipe (3), and an elastic cloth (15) is fixedly installed at the air inlet end of the outlet pipe (3). A filter screen (14) is fixedly installed on the inner edge of the elastic cloth (15). The filter screen (14) is conical and a retaining ring (17) is fixedly installed on the inner edge of the filter screen (14). A bearing (16) sleeved on the rectangular rod (5) is installed on the inner edge of the retaining ring (17), and several spring rods (18) are fixedly installed on the end of the retaining ring (17) away from the separator body (1). One end of the spring rod (18) is fixedly installed with a bracket (12) coaxially arranged with the outlet pipe (3). A rotating ring (20) sleeved on the rectangular rod (5) is rotatably installed on the inner ring edge of the bracket (12). A wedge (21) is fixedly installed on the edge of the rotating ring (20) facing the bearing (16). Several spring rods (18) are distributed in a ring array about the central axis of the rotating ring (20), and a spherical rod (19) for sliding connection with the inclined side of the wedge (21) is fixedly installed on the telescopic end of the spring rod (18).

2. The dynamic separator anti-clogging device according to claim 1, characterized in that: Several electric push rods (13) are fixedly installed at one end of the outlet pipe (3) away from the separator body (1). The electric push rods (13) extend and retract along the central axis of the outlet pipe (3), and the extension and retraction ends of the electric push rods (13) are fixedly installed on the surface of the bracket (12).

3. The dynamic separator anti-clogging device according to claim 1, characterized in that: The separator body (1) is equipped with an inlet fan (2) that is coaxially arranged with the outlet pipe (3) on the other side. One end of the rectangular rod (5) is rotatably connected to the port of the outlet pipe (3), and the other end of the rectangular rod (5) is connected to the inlet fan (2). The fan blade shaft end is fixedly installed.

4. The dynamic separator anti-clogging device according to claim 1, characterized in that: A baffle (4) is fixedly installed inside the separator body (1) above the outlet pipe (3). The baffle (4) is cone-shaped and a switch valve is installed on the bottom edge of the baffle (4).

5. The dynamic separator anti-clogging device according to claim 1, characterized in that: An air outlet pipe (7) is fixedly installed on the inner wall of the separator body (1) near the bottom edge. The air outlet of the air outlet pipe (7) is arranged in a ring shape and is coaxial with the separator body (1). The air inlet of the air outlet pipe (7) is connected to the air outlet of the inlet fan (2). The fan blade shaft of the inlet fan (2) is rotatably connected to the pipe wall of the air outlet pipe (7).

6. The dynamic separator anti-clogging device according to claim 1, characterized in that: Several telescopic rods (9) are fixedly installed at the bottom of the separator body (1), and horizontal lifting plates (8) are fixedly installed on the telescopic ends of the several telescopic rods (9) with their telescopic ends facing upward.

7. The dynamic separator anti-clogging device according to claim 6, characterized in that: A T-shaped plate (6) is fixedly installed at the center of the top edge of the lifting plate (8). The horizontal part above the T-shaped plate (6) is frame-shaped, and a turntable (10) is rotatably connected to the frame-shaped part of the separator body (1) near the T-shaped plate (6). The edge of the turntable (10) is set with horizontal columnar protrusions, and the columnar protrusions are inserted into the inner wall of the frame-shaped part of the T-shaped plate (6).

8. The dynamic separator anti-clogging device according to claim 7, characterized in that: Sprockets (11) are installed on the other end of the turntable (10) and on the rectangular rod (5), and the two sprockets (11) are driven by a chain.

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