Cyclone separation device of circulating fluidized bed boiler

Abstract

The cyclone separation device of the circulating fluidized bed boiler comprises a separator body, a filter screen, a cleaning mechanism and a rotating mechanism, an air outlet pipe is arranged at the top of the separator body, the filter screen is connected into the air outlet pipe in a penetrating mode, the cleaning mechanism comprises a cleaning brush arranged at the bottom of the filter screen, and a rotating plate is arranged at the bottom of the cleaning brush. The rotating mechanism is used for rotating the cleaning brush; the cleaning brush is used for cleaning the filter screen; the rotating mechanism comprises a rotating shaft and a rotating motor. The rotating shaft is fixedly connected to the top of the rotating plate. Through the design of the filter screen, the cleaning brush, the rotating plate and the rotating mechanism, the arranged filter screen is annular and is fixedly connected into the air outlet pipe in a penetrating and inserting mode, the filter screen is used for blocking objects carried in wind and reducing discharged objects in the using process, and when the objects carried in the wind block the filter screen, the cleaning brush is used for cleaning the filter screen. And the rotating mechanism drives the rotating plate and the cleaning brush to clean the filter screen, so that the condition that gas cannot penetrate through the filter screen is avoided.

Description

Technical Field

[0001] This utility model relates to the field of circulating fluidized bed boiler technology, and in particular to a cyclone separator for circulating fluidized bed boilers. Background Technology

[0002] Cyclone separators are one of the key components of circulating fluidized bed boilers. They are mainly used to separate solid particles from flue gas and send them back to the furnace to ensure combustion efficiency and environmental performance.

[0003] When flue gas carrying solid particles enters the cyclone separator, it forms a high-speed rotating airflow inside the device. Due to centrifugal force, denser solid particles are thrown against the separator wall and slide down the wall under the influence of gravity and airflow. The purified gas is discharged from the top outlet pipe, achieving gas-solid separation. However, in actual use, due to the different particle sizes, some fine particles are not completely separated. These particles will enter the outlet pipe with the airflow and be discharged from the separator, resulting in waste. Therefore, this solution proposes a cyclone separator for circulating fluidized bed boilers to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a cyclone separator for a circulating fluidized bed boiler to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cyclone separator for a circulating fluidized bed boiler, comprising:

[0006] The separator body has an air outlet pipe at its top;

[0007] A filter screen, which is inserted and connected inside the air outlet duct;

[0008] A cleaning mechanism, comprising a cleaning brush disposed at the bottom of a filter screen, wherein a rotating plate is disposed at the bottom of the cleaning brush;

[0009] A rotating mechanism for rotating a cleaning brush for cleaning a filter screen.

[0010] Preferably, the rotating mechanism includes:

[0011] A rotating shaft is fixedly connected to the top of the rotating plate and inserted through the middle of the filter screen. The air outlet pipe is provided with a support component to limit the shaking of the rotating shaft.

[0012] A rotary motor is installed at the top of the air outlet duct, and a transmission component is provided at the connection between the rotating shaft and the rotary motor.

[0013] Preferably, the top of the air outlet duct is provided with a mounting plate, and the rotary motor is fixedly connected to the top of the mounting plate.

[0014] Preferably, the support assembly includes a limiting ring sleeved in the middle of the rotating shaft, a support block fixedly connected to the outer wall of the limiting ring, and the end of the support block away from the limiting ring fixedly connected to the inner wall of the middle of the air outlet duct.

[0015] Preferably, the transmission assembly includes a limiting block fixedly connected to the output end of the rotary motor, and a second connector is fixedly connected to the bottom end of the limiting block.

[0016] Preferably, a first connector is fixedly connected to the top of the rotating shaft, and a limiting groove is provided on the top of the first connector, with the second connector inserted into the inside of the limiting groove.

[0017] Preferably, a clamp is fitted on one side of the first connector and the limiting block, the clamp being used to restrict the movement of the first connector and the limiting block.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] This utility model features a filter screen, a cleaning brush, a rotating plate, and a rotating mechanism. The filter screen is ring-shaped and is fixedly inserted into the inside of the air outlet duct. During use, it blocks objects carried in the air, reducing the amount of objects discharged. When objects carried in the air clog the filter screen, the rotating mechanism drives the rotating plate and the cleaning brush to clean the filter screen, preventing the air from being unable to pass through the filter screen. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This is a front sectional view of the present invention.

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A;

[0023] Figure 4 This is a three-dimensional structural diagram of the first connector of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the second connector of this utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the clamp of this utility model.

[0026] In the diagram: 1. Separator body; 101. Air outlet duct; 2. Filter screen; 3. Rotating shaft; 4. Cleaning mechanism; 401. Cleaning brush; 402. Rotating plate; 5. Rotary motor; 6. Transmission assembly; 601. First connector; 602. Restricting groove; 603. Second connector; 604. Restricting block; 605. Clamp; 7. Support assembly; 701. Restricting ring; 702. Support block; 8. Mounting plate. Detailed Implementation

[0027] 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.

[0028] This utility model provides, for example Figure 1-6 Shown:

[0029] Example 1:

[0030] The cyclone separator for a circulating fluidized bed boiler includes:

[0031] The separator body 1 has an air outlet duct 101 installed on its top.

[0032] Filter 2 is inserted into the air outlet duct 101;

[0033] The cleaning mechanism 4 includes a cleaning brush 401 disposed at the bottom of the filter screen 2, and a rotating plate 402 disposed at the bottom of the cleaning brush 401.

[0034] The rotating mechanism is used to rotate the cleaning brush 401, which is used to clean the filter screen 2.

[0035] It should be noted that an air inlet is provided on one side of the separator body 1 for connection with the circulating fluidized bed boiler, allowing the cyclone to enter the interior of the separator body 1. A discharge port is provided at the bottom of the separator body 1 to discharge materials during use. The filter screen 2 has holes with a diameter of 150 to 100 mesh to block materials in the cyclone. The filter screen 2 is annular and is fixedly connected inside the air outlet pipe 101. During use, it is used to block objects carried in the air and reduce the amount of objects discharged. When objects carried in the air clog the filter screen 2, the rotating mechanism drives the rotating plate 402 and the cleaning brush 401 to clean the filter screen 2, preventing the gas from being unable to pass through the filter screen 2.

[0036] Specifically, the rotating mechanism includes:

[0037] The rotating shaft 3 is fixedly connected to the top of the rotating plate 402 and is inserted through the middle of the filter screen 2. The air outlet pipe 101 is provided with a support component 7 to limit the shaking of the rotating shaft 3.

[0038] A rotary motor 5 is installed at the top of the air outlet duct 101, and a transmission component 6 is installed at the connection between the rotating shaft 3 and the rotary motor 5.

[0039] Specifically, an installation plate 8 is provided on the top of the air outlet duct 101, and the rotary motor 5 is fixedly connected to the top of the installation plate 8.

[0040] It should be noted that the rotary motor 5 is an existing servo motor, which is used to drive the rotating shaft 3 at its output end to rotate, and the rotating shaft 3 drives the cleaning mechanism 4 to rotate.

[0041] Specifically, the support component 7 includes a limiting ring 701 sleeved in the middle of the rotating shaft 3, a support block 702 fixedly connected to the outer wall of the limiting ring 701, and the end of the support block 702 away from the limiting ring 701 fixedly connected to the inner wall of the middle of the air outlet duct 101.

[0042] It should be noted that the cross-section of the limiting ring 701 is set as an annular shape, so that the limiting ring 701 can be fitted into the middle of the rotating shaft 3, and the limiting ring 701 is fixed inside the air outlet pipe 101 by the support block 702. In use, the shaking of the rotating shaft 3 is limited by the limiting ring 701 in a fixed position.

[0043] Example 2:

[0044] Transmission component 6 is used in the cyclone separator in Example 1;

[0045] Specifically, the transmission assembly 6 includes a limiting block 604 fixedly connected to the output end of the rotary motor 5, and a second connector 603 is fixedly connected to the bottom end of the limiting block 604.

[0046] Specifically, a first connector 601 is fixedly connected to the top of the rotating shaft 3. A limiting groove 602 is provided on the top of the first connector 601, and a second connector 603 is inserted into the inside of the limiting groove 602.

[0047] Specifically, a clamp 605 is fitted on one side of the first connector 601 and the limiting block 604, and the clamp 605 is used to restrict the movement of the first connector 601 and the limiting block 604.

[0048] It should be noted that the diameters of the first connector 601 and the second connector 603 are larger than the diameters of the rotating shaft 3 and the output end of the rotary motor 5. When connecting the rotating shaft 3 and the rotary motor 5, first align the first connector 601 and the second connector 603, then insert the limiting block 604 on the second connector 603 into the limiting groove 602 on the second connector 603, and finally put the clamp 605 on one side of the first connector 601 and the second connector 603, and fix the two clamps 605 together with bolts. The first connector 601 and the second connector 603 are fixed together by the two clamps 605. In use, the rotary motor 5 drives the rotating shaft 3 and the cleaning mechanism 4 to rotate.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Cyclone device of a circulating fluidized bed boiler, characterized in that include: The separator body (1) is provided with an air outlet pipe (101) on its top. Filter (2), which is inserted into the air outlet pipe (101); The cleaning mechanism (4) includes a cleaning brush (401) disposed at the bottom of the filter screen (2), and a rotating plate (402) is disposed at the bottom of the cleaning brush (401). A rotating mechanism for rotating a cleaning brush (401) for cleaning a filter screen (2).

2. The cyclone device of a circulating fluidized bed boiler according to claim 1, characterized in that The rotating mechanism includes: A rotating shaft (3) is fixedly connected to the top of a rotating plate (402). The rotating shaft (3) is inserted into the middle of a filter screen (2). A support assembly (7) for limiting the shaking of the rotating shaft (3) is provided inside the air outlet pipe (101). A rotary motor (5) is installed at the top of the air outlet pipe (101), and a transmission assembly (6) is provided at the connection between the rotating shaft (3) and the rotary motor (5).

3. The cyclone device of a circulating fluidized bed boiler according to claim 2, characterized in that The top of the air outlet pipe (101) is provided with an mounting plate (8), and the rotary motor (5) is fixedly connected to the top of the mounting plate (8).

4. The cyclone device of a circulating fluidized bed boiler according to claim 2, characterized in that The support assembly (7) includes a limiting ring (701) sleeved in the middle of the rotating shaft (3), and a support block (702) is fixedly connected to the outer wall of the limiting ring (701). The end of the support block (702) away from the limiting ring (701) is fixedly connected to the inner wall of the middle of the air outlet pipe (101).

5. The cyclone device of a circulating fluidized bed boiler according to claim 2, characterized in that The transmission assembly (6) includes a limiting block (604) fixedly connected to the output end of the rotary motor (5), and a second connector (603) is fixedly connected to the bottom end of the limiting block (604).

6. A cyclone device of a circulating fluidized bed boiler according to claim 5, characterized in that The top of the rotating shaft (3) is fixedly connected to a first connector (601), and a limiting groove (602) is provided on the top of the first connector (601). The second connector (603) is inserted into the inside of the limiting groove (602).

7. A cyclone device of a circulating fluidized bed boiler according to claim 6, characterized in that A clamp (605) is fitted on one side of the first connector (601) and the limiting block (604), and the clamp (605) is used to restrict the movement of the first connector (601) and the limiting block (604).

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