A cyclone separator vortex finder air inlet flow guide adjusting device

Abstract

The utility model relates to cement production line equipment especially cyclone dust collector equipment, concretely relates to a cyclone dust collector volute air inlet flow guide adjusting device, solves the problem that the dust collection efficiency is low because of too low air flow velocity, can flexibly adjust the direction and air velocity of volute air inlet, improves the dust collection efficiency, including volute and flow guide plate, the lateral wall of volute is equipped with volute air inlet, the vertical section of volute air inlet is rectangle, the volute air inlet is installed with the vertical distribution pivot in the whirl, the pivot is located in the volute air inlet and is away from the position of volute outer circumferential wall, the flow guide plate vertical distribution is in the volute air inlet, one side of flow guide plate is fixed on the pivot, the top of pivot extends to outside after penetrating the top plate of volute air inlet, the top of pivot is connected with the transverse distribution handle, the top plate of volute air inlet is also equipped with the locating plate, the handle is assembled with the locating plate.

Description

Technical Field

[0001] This utility model relates to cement production line equipment, and more particularly to cyclone dust collector equipment, specifically to a cyclone dust collector vortex inlet air guiding and regulating device. Background Technology

[0002] As is well known, a cyclone dust collector is a dry gas-solid dust removal device that uses centrifugal force generated by the high-speed rotation of a gas-solid mixture to separate dust. Its structure consists of a cylindrical body (also called a vortex shell) and a conical body. An exhaust pipe is located at the top, an air inlet is located on the side wall, and a dust discharge device is connected to the bottom. When the dust-laden airflow enters through the inlet and rotates, centrifugal force causes the dust to adhere to the collector wall, and then it falls into the ash hopper under gravity. Cyclone dust collectors have a wide range of applications, especially in the cement production industry, where their main function is to separate powder materials.

[0003] The key to the working principle of a cyclone dust collector is that the dust-laden airflow needs to rotate within the collector wall. Centrifugal force forces the dust to adhere to the wall, enabling efficient dust separation. However, the inlet of the vortex casing is often fixed, while the velocity of the dust-laden airflow varies. When the velocity is too low, the airflow entering the vortex casing cannot effectively adhere to the wall and rotate centrifugally, leading to reduced efficiency. Furthermore, the inlet height is often around 3 meters, and there is no suitable regulating valve to change the inlet area. Utility Model Content

[0004] This utility model provides a flow guiding and adjusting device for the air inlet of a cyclone dust collector's vortex shell, which solves the problem of low dust collection efficiency caused by low airflow velocity. It can flexibly adjust the direction and velocity of the air inlet of the vortex shell to improve dust collection efficiency.

[0005] This utility model is achieved through the following technical solution: A cyclone dust collector vortex shell air inlet guiding and regulating device includes a vortex shell and a guide plate. The side wall of the vortex shell is provided with a vortex shell air inlet, and the vertical cross section of the vortex shell air inlet is rectangular. A vertically distributed rotating shaft is installed inside the air inlet of the vortex housing. The rotating shaft is located inside the air inlet of the vortex housing away from the outer circumferential wall of the vortex housing. The guide plate is vertically distributed inside the air inlet of the vortex housing. One side of the guide plate is fixed to the rotating shaft. The top end of the rotating shaft passes through the top plate of the air inlet of the vortex housing and extends to the outside. The top end of the rotating shaft is connected to a horizontally distributed handle. The top plate of the vortex air inlet is also provided with a positioning plate, and the handle is assembled and connected to the positioning plate; By rotating the handle, the air intake area of ​​the vortex inlet can be adjusted.

[0006] Furthermore, the height of the guide plate is equal to the height of the vortex inlet.

[0007] Furthermore, the positioning plate is an arc-shaped dial, and the arc of the dial is circular with the axis of rotation of the shaft as the center line; The dial has multiple positioning holes evenly distributed along the arc direction, and the handle has a connection hole. The connection hole of the handle is connected to the corresponding positioning hole on the dial through a positioning bolt.

[0008] Furthermore, the inner wall of the vortex shell is provided with transversely distributed support brackets near the lower part, and the bottom end of the rotating shaft is rotated and mounted on the support brackets via a lower bearing assembly; The outer wall of the top plate of the vortex inlet is provided with an upper bearing assembly. The part of the rotating shaft near the top is assembled and connected to the upper bearing assembly, so that the rotating shaft is rotatably connected to the top plate of the vortex inlet.

[0009] Furthermore, the rotation angle range of the handle is 0°-90°. The height of the guide plate is 3-3.5m.

[0010] The beneficial effects achieved by this utility model compared with the prior art are as follows: 1. The rotating shaft is located inside the air inlet of the vortex housing, away from the outer circumferential wall of the vortex housing. One side of the guide plate is fixed on the rotating shaft, and a horizontally distributed handle is connected to the top of the rotating shaft. The angle of the guide plate can be changed by the handle, thereby adjusting the actual area of ​​the air inlet of the vortex housing. When the airflow velocity is too low, resulting in low dust collection efficiency, the cross-sectional area of ​​the vortex inlet can be reduced by adjusting the guide plate with the handle, thereby increasing the airflow velocity inside the vortex inlet. At the same time, since the rotating shaft is located inside the vortex inlet away from the outer circumferential wall of the vortex, the airflow can be guided to the outer circumferential wall of the vortex by the guide plate, adjusting the airflow direction so that the airflow carrying dust can stick as close as possible to the inner side of the outer circumferential wall of the vortex, increasing the centrifugal force during the dust rotation process. After hitting the wall, the dust slides down to the cone of the cyclone separator, improving the separation efficiency. 2. The positioning plate is an arc-shaped dial. The handle's connection hole is connected to the corresponding positioning hole on the dial through a positioning bolt, which makes it convenient for the operator to adjust the angle of the guide plate from the outside of the equipment. The operation is convenient and simple. 3. The bottom end of the rotating shaft is swivelly mounted on the supporting bracket plate via the lower bearing assembly, and the part of the rotating shaft near the top end is assembled and connected to the upper bearing assembly, so that the rotating shaft is swivelly connected to the top plate of the vortex air inlet. This design can ensure that the rotating shaft can be rotated and adjusted stably, overcoming the problem of difficulty in adjusting the rotation due to its own length of more than 3m. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the cyclone dust collector vortex inlet air guiding and adjusting device of the present invention in the position of the cyclone dust collector; Figure 2 This is a schematic diagram of the airflow guiding and adjusting device for the vortex shell air inlet of the cyclone dust collector described in this utility model; Figure 3 This is a top view of the cyclone dust collector vortex inlet air guide and adjustment device described in this utility model; Figure 4 This is a top view of the handle and positioning plate of this utility model in action; In the diagram: 1. Vortex housing, 2. Guide plate, 3. Vortex housing inlet, 4. Shaft, 5. Handle, 6. Positioning plate, 7. Positioning hole, 8. Support bracket plate, 9. Lower bearing assembly, 10. Upper bearing assembly. Detailed Implementation

[0012] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0013] In the description of the utility model, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0014] like Figure 1 As shown, the upper part of the existing cyclone dust collector is a vortex shell 1, and the lower part is a cone. The side wall of the vortex shell 1 is the vortex shell air inlet 3. In order to adjust the airflow speed and direction, such as Figure 2 As shown, this embodiment discloses a flow guiding and adjusting device for the vortex inlet of a cyclone dust collector. It mainly includes a vortex shell 1, a guide plate 2, a rotating shaft 4, a handle 5, a supporting bracket 8, an upper bearing assembly 10, and a lower bearing assembly 9. The vertical cross-section of the vortex inlet 3 on the side wall of the vortex shell 1 is rectangular. In the field of cement production line equipment, cyclone dust collectors are generally quite large, with the height of the vortex inlet 3 reaching approximately 3.3m. The rotating shaft 4 needs to be rotatably installed inside the vortex inlet 3. In order to guide the airflow as much as possible into the outer circumferential wall of the vortex shell, the rotating shaft 4 is located inside the vortex inlet 3 at a position away from the outer circumferential wall of the vortex shell.

[0015] Because the inner wall of the volute is fixedly connected to a horizontally distributed support bracket 8 near the lower part, the bottom end of the rotating shaft 4 is swivelly mounted on the support bracket 8 via a lower bearing assembly 9. The top end of the rotating shaft 4 extends outward through the top plate of the volute inlet 3. An upper bearing assembly 10 is installed on the outer wall of the top plate of the volute inlet 3. The part of the rotating shaft 4 near the top end is assembled and connected to the upper bearing assembly 10, thereby making the rotating shaft 4 swivelly connected to the top plate of the volute inlet 3. In this embodiment, the upper bearing assembly 10 and the lower bearing assembly 9 mainly include a bearing support, a bearing housing, and a thrust ball bearing located in the bearing housing, etc. Since these are conventional technical components, they are not described in detail here. The upper bearing assembly 10 and the lower bearing assembly 9 can ensure the stable rotation of the rotating shaft 4.

[0016] The guide vanes 2 are vertically distributed inside the vortex inlet 3. One side of the guide vanes 2 is fixed to the rotating shaft 4 with bolts. The height of the guide vanes 2 is approximately 3.3m, making the height of the guide vanes 2 equal to the height of the vortex inlet 3. The width of the guide vanes 2 is 0.5m. Figures 3-4 As shown, a horizontally distributed handle 5 is fixedly connected to the top of the rotating shaft 4 via a bolt assembly. A positioning plate 6 is also installed on the top plate of the volute inlet 3. The positioning plate 6 is an arc-shaped dial, with the arc of the dial centered on the axis of the rotating shaft 4. Multiple positioning holes 7 are evenly distributed along the arc direction on the dial. The handle 5 has a connecting hole, and the connecting hole of the handle 5 is connected to the corresponding positioning hole 7 on the dial via positioning bolts, thereby assembling and connecting the handle 5 to the positioning plate 6. With this design, the air intake area of ​​the volute inlet can be adjusted by rotating the handle 5. In this embodiment, the rotation angle range of the handle 5 is 0°-90°.

[0017] The specific working process of the air inlet guide and adjustment device of the dust collector volute described in this embodiment is as follows: Generally, the specifications of the vortex inlet of a cyclone dust collector have corresponding airflow velocity requirements. When the airflow velocity is too low, the dust collection efficiency will be low. Therefore, we can reduce the cross-sectional area of ​​the vortex inlet by adjusting the guide plate with the handle, thereby increasing the airflow velocity inside the vortex inlet. At the same time, since the rotating shaft is located inside the vortex inlet away from the outer circumferential wall of the vortex, the guide plate can guide the airflow to the outer circumferential wall of the vortex, adjusting the airflow direction. This allows the airflow carrying dust to stick as close as possible to the inner side of the outer circumferential wall of the vortex, increasing the centrifugal force during the dust rotation process. After hitting the wall, the dust slides down to the cone of the cyclone separator, improving the separation efficiency.

Claims

1. A flow guiding and regulating device for the air inlet of a cyclone dust collector vortex casing, characterized in that, It includes a vortex shell (1) and a guide plate (2). The side wall of the vortex shell (1) is provided with a vortex shell air inlet (3). The vertical cross section of the vortex shell air inlet (3) is rectangular. A vertically distributed rotating shaft (4) is installed inside the vortex inlet (3). The rotating shaft (4) is located inside the vortex inlet (3) away from the outer circumferential wall of the vortex. The guide plate (2) is vertically distributed inside the vortex inlet (3). One side of the guide plate (2) is fixed on the rotating shaft (4). The top end of the rotating shaft (4) extends outward after passing through the top plate of the vortex inlet (3). A horizontally distributed handle (5) is connected to the top end of the rotating shaft (4). The top plate of the vortex air inlet (3) is also provided with a positioning plate (6), and the handle (5) is assembled and connected to the positioning plate (6); By rotating the handle (5), the air inlet area of ​​the vortex inlet can be adjusted.

2. The cyclone dust collector vortex inlet air guiding and regulating device according to claim 1, characterized in that, The height of the guide plate (2) is equal to the height of the vortex inlet (3).

3. The cyclone dust collector vortex inlet air guiding and regulating device according to claim 1, characterized in that, The positioning plate (6) is an arc-shaped dial, and the arc of the dial is circular with the axis of the rotating shaft (4) as the center line; The dial has multiple positioning holes (7) evenly distributed along the arc direction. The handle (5) has a connection hole. The connection hole of the handle (5) is connected to the corresponding positioning hole (7) on the dial through a positioning bolt.

4. The cyclone dust collector vortex inlet air guiding and regulating device according to claim 1, characterized in that, The inner wall of the vortex shell is provided with a horizontally distributed support bracket (8) near the lower part, and the bottom end of the rotating shaft (4) is rotated and mounted on the support bracket (8) through the lower bearing assembly (9). The top plate of the vortex inlet (3) is provided with an upper bearing assembly. The part of the rotating shaft (4) near the top is assembled and connected with the upper bearing assembly (10) so that the rotating shaft (4) is rotatably connected to the top plate of the vortex inlet (3).

5. The cyclone dust collector vortex inlet air guiding and regulating device according to any one of claims 1-4, characterized in that, The rotation angle range of the handle (5) is 0°-90°, and the height of the guide plate (2) is 3-3.5m.

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