Ash cleaning equipment of coal-fired power generation unit
The coordination of the motor-driven screw and the rotating support components solves the problem of low efficiency of the ash cleaning device of the coal-fired power generation unit, and achieves efficient cleaning and stable discharge of ash from multiple discharge ports.
Patent Information
- Application Number
- CN202422614570.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The ash cleaning devices of existing coal-fired power generation units are inefficient and cannot effectively clean the ash residue from multiple discharge ports, resulting in a limited cleaning range.
A screw driven by a motor is used for ash transportation, and the rotation stability of the screw is ensured by the cooperation of rotating support components such as a limit seat and a support column, so that the ash at multiple feed ports can be efficiently cleaned.
It improves the stability and efficiency of ash cleaning, ensures the stability of the connection between the screw and the motor, and realizes efficient ash discharge from multiple feed ports.
Smart Images
Figure CN223375830U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ash cleaning of coal-fired generator sets, in particular to ash cleaning equipment for coal-fired generator sets. Background Art
[0002] Coal-fired power generation units are currently widely used in the field of power generation. During the operation of coal-fired power generation units, a large amount of ash is generated. Usually, a cleaning device is used to clean the ash. However, the current cleaning device has low working efficiency and a limited cleaning range. It is impossible to collect and process the ash from multiple discharge ports in the length direction, which greatly reduces the cleaning efficiency. Utility Model Content
[0003] In view of this, the technical problem to be solved by the present invention is: how to provide an ash cleaning device for a coal-fired power generation unit to transfer ash from multiple ports set on a cleaning channel through a screw driven by a motor, and to ensure the rotation stability of the screw by rotating a supporting component.
[0004] To achieve the above-mentioned purpose, the utility model provides an ash cleaning device for a coal-fired power generation unit, which comprises: a housing, a feed port, a discharge port, a screw, and a rotating support component;
[0005] A plurality of feed ports are provided on the upper portion of the shell, the plurality of feed ports are spaced apart along the length direction of the shell, and the discharge port is provided at the bottom of the shell;
[0006] The two ends of the screw are rotatably connected to the two sides of the shell respectively, and a connecting shaft is provided at one end of the screw, and the connecting shaft is used to be connected to the driving motor. The driving motor drives the screw to rotate inside the shell, and the screw is provided with a rotary vane, which extends in a spiral shape along the length direction of the screw. Under the rotation of the screw, the material entering through the feed port is transported from the discharge port;
[0007] The rotating support component includes a limit seat, a limit groove is formed inside the limit seat, a support column is provided on the screw, and the support column is arranged in a direction perpendicular to the axis of the screw. The support columns are respectively arranged on both sides of the screw, and the ends of the support columns are accommodated in the limit groove. The screw is restricted from moving along its axis by the cooperation between the ends of the support columns and the limit groove.
[0008] Furthermore, the width of the limiting groove is greater than the width of the supporting column.
[0009] Furthermore, the limiting seat is arranged on the inner wall of the shell along the circumferential direction.
[0010] Furthermore, the support column is welded to the screw rod.
[0011] Furthermore, support legs are provided at the bottom of the shell.
[0012] Compared with the related art, the ash cleaning equipment of a coal-fired power generation unit proposed in the present invention has the following beneficial effects: a driving motor drives the screw to rotate in the shell, and during the rotation process of the screw, the ash material is discharged from the discharge port by the rotary vanes arranged on the screw, thereby improving the rotation stability of the screw inside the individual, and a rotation support component is arranged inside the shell. The rotation support component includes a limit seat, a limit groove is formed inside the limit seat, and a support column for cooperating with the limit groove is arranged on the screw. The movement of the screw along the axial direction can be limited by the cooperation between the support column and the limit groove, thereby ensuring the rotation stability of the screw in the shell, preventing the screw from having a large deviation along the axial direction, and ensuring the connection stability of the connecting shaft on the screw and the motor, thereby realizing efficient and stable cleaning and discharge of ash materials from multiple feed ports in the length direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic structural diagram of an ash cleaning device for a coal-fired power generation unit according to an embodiment of the present invention;
[0014] Figure 2 This is a schematic diagram of the internal structure of the ash cleaning equipment for a coal-fired power generation unit according to an embodiment of the present utility model;
[0015] Figure 3 This is a schematic diagram of the internal structure of the ash cleaning equipment of the coal-fired power generation unit in the embodiment of the present utility model. DETAILED DESCRIPTION
[0016] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.
[0017] See Figure 1-3 As shown, the utility model provides an ash cleaning device for a coal-fired power generation unit, which includes: a shell 10, a feed port 11, a discharge port 12, a screw 20, and a rotating support component.
[0018] A plurality of feed ports 11 are provided on the upper portion of the housing 10 and are spaced apart along the length of the housing 10 . A discharge port 12 is provided at the bottom of the housing 10 . A support leg 13 is provided at the bottom of the housing 10 .
[0019] The ends of the screw 20 are rotatably connected to the two sides of the housing 10. A connecting shaft 22 is provided at one end of the screw 20 for connection to a drive motor. The drive motor drives the screw 20 to rotate within the housing 10. The screw 20 is provided with a rotor 21 that extends helically along the length of the screw 20. The rotation of the screw 20 causes the material entering through the feed port 11 to be conveyed from the discharge port 12. The drive motor drives the screw 20 to rotate within the housing 10. During the rotation of the screw 20, the rotor 21 provided on the screw 20 discharges the ash material from the discharge port 12.
[0020] In order to improve the rotation stability of the screw 20 inside the shell 10, the rotation support component includes a limit seat 30, which is arranged on the inner wall of the shell 10 along the circumferential direction. A limit groove 31 is formed inside the limit seat 30, and the limit groove 31 forms an annular space.
[0021] The width of the limiting groove 31 is greater than the width of the support column 23. The support column 23 is set on the screw 20, and the support column 23 is welded to the screw 20. The support column 23 is set in a direction perpendicular to the axis of the screw 20. The support columns 23 are respectively set on both sides of the screw 20. The ends of the support columns 23 are accommodated in the limiting groove 31. The ends of the support columns 23 and the limiting groove 31 are matched to limit the movement of the screw 20 along its axis.
[0022] The cooperation between the support column 23 and the limit groove 31 can limit the movement of the screw 20 along the axial direction, thereby ensuring the rotation stability of the screw 20 in the shell 10, preventing the screw 20 from deviating significantly along the axial direction, and ensuring the connection stability between the connecting shaft 22 on the screw 20 and the motor, thereby achieving efficient and stable cleaning and discharge of ash materials from multiple feed ports 11 in the length direction.
[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. An ash cleaning device for a coal-fired power generation unit, characterized in that: It includes: Shell, feed port, discharge port, screw, and rotating support components; A plurality of feed ports are provided on the upper portion of the shell, the plurality of feed ports are spaced apart along the length direction of the shell, and the discharge port is provided at the bottom of the shell; The two ends of the screw are rotatably connected to the two sides of the shell respectively, and a connecting shaft is provided at one end of the screw, and the connecting shaft is used to be connected to the driving motor. The driving motor drives the screw to rotate inside the shell, and the screw is provided with a rotary vane, which extends in a spiral shape along the length direction of the screw. Under the rotation of the screw, the material entering through the feed port is transported from the discharge port; The rotating support component includes a limit seat, a limit groove is formed inside the limit seat, a support column is provided on the screw, and the support column is arranged in a direction perpendicular to the axis of the screw. The support columns are respectively arranged on both sides of the screw, and the ends of the support columns are accommodated in the limit groove. The screw is restricted from moving along its axis by the cooperation between the ends of the support columns and the limit groove.
2. The ash cleaning device for a coal-fired power generation unit according to claim 1, characterized in that: The width of the limiting groove is greater than the width of the supporting column.
3. The ash cleaning device for a coal-fired power generation unit according to claim 1, characterized in that: The limiting seat is arranged on the inner wall of the shell along the circumferential direction.
4. The ash cleaning device for a coal-fired power generation unit according to claim 1, characterized in that: The support column is welded to the screw rod.
5. The ash cleaning device for a coal-fired power generation unit according to claim 1, characterized in that: Support legs are provided at the bottom of the shell.