CFB boiler chain bucket lifting device
By using a combination of rotary detector and strong magnetic tile in the CFB boiler chain bucket lifting device, the problem of inaccurate fault point detection in traditional detection methods is solved, and the effect of fast and accurate chain break signal detection and interference reduction is achieved.
Patent Information
- Application Number
- CN202421356452.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-14
AI Technical Summary
During the operation of the chain bucket lifting device, how to accurately and efficiently detect its fault points has always been a technical problem faced by the industry. The traditional detection methods have problems such as high voltage, high risk of electric shock, and low measurement accuracy.
A CFB boiler chain bucket lifting device is designed, which adopts a combination of a rotating detector and a strong magnetic tile. When the chain is broken through, the turntable stops rotating, the detector signal disappears, and the control circuit stops the bucket lifting machine and alarms.
It realizes rapid and accurate detection of the broken chain signal of the bucket lifter, greatly reducing on-site vibration and electromagnetic signal interference, simple installation and easy to promote, and is suitable for supercritical boiler technology field.
Smart Images
Figure CN222475230U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of boiler chain bucket lifting, in particular to a CFB boiler chain bucket lifting device. Background Art
[0002] In the CFB boiler system, the chain bucket lifting device is the core equipment for vertical material transportation. The stability and reliability of its performance are directly related to the operating efficiency of the entire boiler system. The chain bucket elevator, usually referred to as the bucket elevator, is a mechanical equipment that uses chains or belts to drive bucket-shaped containers to transport materials on vertical or inclined tracks. Through the continuous movement of the chain or belt, the bucket-shaped container can achieve continuous or intermittent lifting of materials on the track to meet the needs of vertical material transportation in different industrial fields.
[0003] However, during the operation of the chain bucket lifting device, how to accurately and efficiently detect its fault point has always been a technical challenge faced by the industry. Traditional detection methods, such as the pulse secondary meter detection method, although able to detect the fault point to a certain extent, have obvious disadvantages. This method has a high voltage during the test, which increases the risk of electric shock for the tester; at the same time, since the pulse signal is easily affected by noise, the measurement accuracy is affected by the beam width and signal attenuation, which greatly affects the accuracy and reliability of fault point positioning. Utility Model Content
[0004] In order to solve the above problems, the utility model proposes a CFB boiler chain bucket lifting device.
[0005] The technical solution adopted by the utility model is as follows: the utility model provides a CFB boiler chain bucket lifting device, including a bucket elevator, a fixed bracket is provided at the bottom end of one side of the bucket elevator, a rotating detector is provided on the fixed bracket, a rotating shaft 2 is rotatably provided at the bottom end of the inner side wall of the bucket elevator, a rotating shaft 1 is rotatably provided at the upper end of the inner side wall of the bucket elevator, a gear 2 is sleeved on the rotating shaft 2, a gear 1 is sleeved on the rotating shaft 1, a chain is wound around the gear 1 and the gear 2, a lifting motor is provided at the upper end of the outer wall of the bucket elevator, an output end of the lifting motor is connected to one end of the rotating shaft 1, one end of the rotating shaft 2 is connected to one side of a turntable, a metal protrusion is provided in a ring array on the other side of the turntable, and a strong magnetic patch is provided on the metal protrusion.
[0006] Furthermore, a hopper is provided on the chain.
[0007] Furthermore, the distance between the rotating detector and the turntable is 5 mm.
[0008] Furthermore, the rotation detector is electrically connected to a control circuit of the bucket elevator.
[0009] The beneficial effects achieved by the utility model using the above structure are as follows:
[0010] (1) Can quickly and accurately detect the chain break signal of the bucket elevator.
[0011] (2) It can significantly reduce the interference of various vibration signals and electromagnetic signals on the site.
[0012] (3) It is simple to install and easy to promote, and can be widely used in the field of supercritical boiler technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 This is a front view of a CFB boiler chain bucket lifting device of the utility model;
[0015] Figure 2 This is a front cross-sectional view of a CFB boiler chain bucket lifting device of the utility model;
[0016] Figure 3 This is a schematic diagram of the turntable results.
[0017] Among them, 1. bucket elevator, 2. fixed bracket, 3. rotating detector, 4. turntable, 5. lifting motor, 6. gear one, 7. gear two, 8. chain, 9. rotating shaft one, 10. bucket, 11. metal protrusion, 12. strong magnetic patch, 13. rotating shaft two. DETAILED DESCRIPTION
[0018] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0019] like Figure 1-Figure 3As shown, the utility model proposes a CFB boiler chain bucket lifting device, including a bucket elevator 1, a fixed bracket 2 is provided at the bottom end of one side of the bucket elevator 1, a rotating detector 3 is provided on the fixed bracket 2, the rotating detector 3 is electrically connected to the control circuit of the bucket elevator 1, a rotating shaft 2 13 is rotatably provided at the bottom end of the inner side wall of the bucket elevator 1, a rotating shaft 1 9 is rotatably provided at the upper end of the inner side wall of the bucket elevator 1, a gear 2 7 is sleeved on the rotating shaft 13, a gear 1 6 is sleeved on the rotating shaft 19, a chain 8 is wound around the gear 1 6 and the gear 2 7, a bucket 10 is provided on the chain 8, a lifting motor 5 is provided at the upper end of the outer wall of the bucket elevator 1, the output end of the lifting motor 5 is connected to one end of the rotating shaft 1 9, one end of the rotating shaft 2 13 is connected to one side of a turntable 4, the distance between the rotating detector 3 and the turntable 4 is 5 mm, and a metal protrusion 11 is provided in a circular array on the other side of the turntable 4, and a strong magnetic patch 12 is provided on the metal protrusion 11.
[0020] During specific use, the rotation of the lifting motor 5 drives the rotating shaft 9 to rotate, the rotation of the rotating shaft 9 drives the gear 6 to rotate, the rotation of the gear 6 drives the chain 8 to rotate, the rotation of the chain 8 drives the gear 2 7 to rotate, the rotation of the gear 27 drives the rotating shaft 2 13 to rotate, the rotation of the rotating shaft 2 13 drives the turntable 4 to rotate, the rotation of the turntable 4 drives the metal protrusion 11 to rotate, the rotation of the metal protrusion 11 drives the strong magnetic patch 12 to rotate, the rotation detector 3 is used to detect the strong magnetic patch 12 on the turntable 4, when the chain 8 is disconnected, the turntable 4 stops rotating, the signal of the rotation detector 3 disappears, the control circuit stops the bucket elevator 1 and issues an alarm, the above is the overall working process of the utility model, and this step can be repeated the next time it is used.
[0021] It can be seen from the above embodiments that the beneficial effects of the utility model are:
[0022] It can quickly and accurately detect the broken chain signal of the bucket elevator; it can greatly reduce the interference of various vibration signals and electromagnetic signals on the signal; it is simple to install and easy to promote, and can be widely used in the field of supercritical boiler technology.
[0023] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A CFB boiler chain bucket lifting device, comprising a bucket elevator (1), characterized in that: A fixed bracket (2) is provided at the bottom end of one side of the bucket elevator (1), and a rotating detector (3) is provided on the fixed bracket (2). A rotating shaft 2 (13) is rotatably provided at the bottom end of the inner side wall of the bucket elevator (1). A rotating shaft 1 (9) is rotatably provided at the upper end of the inner side wall of the bucket elevator (1). A gear 2 (7) is sleeved on the rotating shaft 2 (13), and a gear 1 (6) is sleeved on the rotating shaft 1 (9). A chain (8) is wound around the gear 1 (6) and the gear 2 (7). A lifting motor (5) is provided at the upper end of the outer wall of the bucket elevator (1), and the output end of the lifting motor (5) is connected to one end of the rotating shaft 1 (9). One end of the rotating shaft 2 (13) is connected to one side of a turntable (4). A metal protrusion (11) is provided in a ring array on the other side of the turntable (4), and a strong magnetic patch (12) is provided on the metal protrusion (11).
2. A CFB boiler chain bucket lifting device according to claim 1, characterized in that: A hopper (10) is provided on the chain (8).
3. A CFB boiler chain bucket lifting device according to claim 2, characterized in that: The distance between the rotating detector (3) and the rotating disk (4) is 5 mm.
4. A CFB boiler chain bucket lifting device according to claim 3, characterized in that: The rotation detector (3) is electrically connected to a control circuit of the bucket elevator (1).