Monitoring and alarming device for slag removal chain of boiler

By using a speed detection mechanism consisting of a swing detection rod and a photoelectric switch in the boiler slag removal system, the chain problem caused by scraper conveyor wear was solved, enabling accurate detection and timely alarm of the chain running status, thus ensuring the stable operation of the boiler slag removal system.

CN223467739UActive Publication Date: 2025-10-24关蒙
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Patent Information

Application Number
CN202422911250.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-10-24
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

The scraper conveyor in the existing boiler slag removal system suffers from severe wear, which can easily lead to chain breakage, stalling, and other problems, resulting in slag trough blockage. The existing sensors are inaccurate and easily affected by the environment, which affects the normal operation of the heating system.

Method used

A speed detection mechanism consisting of a swing detection rod and a photoelectric switch is used to detect the scraper's operating status by swinging the detection rod. Combined with the photoelectric switch and controller, the chain running speed is monitored, and an alarm is installed in the monitoring room to avoid environmental interference.

Benefits of technology

It achieves accurate detection of the chain's operating status, timely alarm, avoids the impact of complex environments on detection, reduces waste of manpower and resources, and ensures the stable operation of the boiler slag removal system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a boiler slag removal chain monitoring and alarming device which comprises a mounting frame mounted beside a rack of a scraper, and a speed detection mechanism used for detecting the running speed of a chain on the scraper is arranged on the mounting frame. The speed detection mechanism of the state monitoring mechanism comprises a swing detection rod which is installed on an installation frame through a rotating piece and inserted between scrapers of the scraper conveyor, a horizontally-arranged transverse frame is arranged on the upper portion of the installation frame, a first optoelectronic switch is arranged at one end of the transverse frame, and a second optoelectronic switch is arranged at the other end of the transverse frame. The first optoelectronic switch and the second optoelectronic switch are used for detecting the tail end position of the swing detection rod when a scraper on the scraper drives the swing detection rod to swing. The chain running speed detection device can detect the running speed of the chain through the interval time of the adjacent scraping plates and the swing detection rod, and has the advantages of being simple in structure and not prone to being affected by complex environments.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler deslagging related technical field, concretely is a kind of boiler deslagging chain monitoring alarm device. BACKGROUND

[0002] The existing boiler deslagging system totals two lines, and wet-type scraper is used to complete the work of boiler deslagging, and the scraper structure includes conveyor head and tail, scraper chain and chute etc.Under the premise of design load operation, due to the long-term operation of scraper, the wear and corrosion are very serious, and chain breakage and stall often occur, which cannot be found in time, causing partial blockage of slag groove, a large amount of accumulated ash and pressure, causing great difficulty in maintenance, wasting a lot of manpower, material resources and financial resources, and seriously affecting the normal operation of heating work.The existing speed detection is carried out by inductor, but the inductor is prone to failure and inaccurate detection due to the complex deslagging site environment. SUMMARY

[0003] To solve the defects of the prior art, the utility model provides a boiler deslagging chain monitoring alarm device.

[0004] To solve the above technical problems, the utility model provides the following technical scheme:

[0005] The utility model discloses a kind of boiler deslagging chain monitoring alarm device, including the rack of being installed in the rack of scraper, the speed detection mechanism for detecting the chain running speed on the scraper is equipped on the rack;

[0006] The speed detection mechanism includes swing detection rod, which is installed on the rack by rotating member and inserted between the scraper of the scraper;

[0007] Further comprising equipment box arranged in monitoring room, the controller is equipped in the equipment box, the first photoelectric switch and the second photoelectric switch are connected with the controller;The alarm connected with the controller is further equipped in the equipment box.

[0008] As a preferred technical scheme of the utility model, when the first photoelectric switch and the second photoelectric switch receive the end position information of swing detection rod, it indicates that the scraper passes through swing detection rod.

[0009] As a preferred technical scheme of the utility model, the length of the swing detection rod meets that when one of the scrapers drives the swing detection rod to swing, no collision with the adjacent scraper occurs.

[0010] As a preferred technical scheme of the utility model, when the controller receives the interval length of the swing of the swing detection rod detected by the speed detection mechanism, which is not within the set safety range, the controller controls the alarm to send an alarm signal.

[0011] As a preferred technical scheme of the utility model, the region where the swing detection rod contacts the scraper is provided with an anti-collision layer.

[0012] As a preferred technical scheme of the utility model, the horizontal rack is provided with a horizontally arranged strip-shaped groove, and the first photoelectric switch and the second photoelectric switch are installed in the strip-shaped groove and are fixed through a fastening nut.

[0013] The utility model has the advantages of:

[0014] The boiler slag removal chain monitoring and alarming device is provided with the swing detection rod on the mounting rack and between the scrapers of the scraper machine, and the first photoelectric switch is arranged at one end of the horizontal rack, and the second photoelectric switch is arranged at the other end of the horizontal rack, the first photoelectric switch and the second photoelectric switch are used for detecting the end position of the swing detection rod when the scraper on the scraper machine drives the swing detection rod to swing, so that when the first photoelectric switch and the second photoelectric switch receive the end position information of the swing detection rod, it is indicated that the scraper passes through the swing detection rod, and the running state of the chain scraper is detected through the swing of the swing detection rod, the adjacent scrapers pass through the swing detection rod at an interval, and the running speed of the chain is detected, the structure is simple, the device is not affected by the complex environment, and the device box arranged in the monitoring room is further included, the controller is arranged in the device box, the first photoelectric switch and the second photoelectric switch are connected with the controller, the alarm connected with the controller is further arranged in the device box, so that the monitoring room can be monitored, and the influence of the complex environment is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation on the utility model.

[0016] Figure 1 It is a structure schematic view of the boiler slag removal chain monitoring and alarming device in the utility model embodiment 1.

[0017] Figure 2 It is a movement schematic view of the swing detection rod of the boiler slag removal chain monitoring and alarming device in the utility model embodiment 1.

[0018] Figure 3 This is a schematic structural diagram of a boiler slag removal chain monitoring and alarm device in Example 2 of the present utility model;

[0019] Figure 4 This is a schematic diagram of the installation of fastening nuts of a boiler slag removal chain monitoring and alarm device in Example 2 of the present utility model.

[0020] In the figure: 1. Scraper; 2. Mounting frame; 3. Scraper; 4. Swing detection rod; 5. Horizontal frame; 6. First photoelectric switch; 7. Second photoelectric switch; 8. Equipment box; 9. Controller; 10. Alarm; 11. Anti-collision layer; 12. Strip groove; 13. Fastening nut. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0022] Example: Figure 1 and Figure 2 As shown, the utility model is a boiler deslagging chain monitoring and alarm device, comprising a mounting frame 2 mounted on the side of the frame of the scraper 1, and a speed detection mechanism for detecting the running speed of the chain on the scraper 1 is provided on the mounting frame 2;

[0023] The speed detection mechanism includes a swing detection rod 4 mounted on a mounting frame 2 via a rotating member and inserted between the scrapers 3 of the scraper 1. A horizontally arranged cross frame 5 is provided on the upper portion of the mounting frame 2. A first photoelectric switch 6 is provided at one end of the cross frame 5, and a second photoelectric switch 7 is provided at the other end of the cross frame 5. The first photoelectric switch 6 and the second photoelectric switch 7 are used to detect the end position of the swing detection rod 4 when the scraper 3 on the scraper 1 drives the swing detection rod 4 to swing.

[0024] Further comprising a device box 8 arranged in the monitoring room, the device box 8 is internally provided with a controller 9, the first photoelectric switch 6 and the second photoelectric switch 7 are connected with the controller 9; the device box 8 is further provided with an alarm 10 connected with the controller 9. The swing detection rod 4 is arranged on the mounting frame 2 and inserted between the scrapers 3 of the scraper 3 machine 1, and the first photoelectric switch 6 is arranged at one end of the cross frame 5, and the second photoelectric switch 7 is arranged at the other end of the cross frame 5, the first photoelectric switch 6 and the second photoelectric switch 7 are used to detect the position of the end of the swing detection rod 4 when the scraper 3 on the scraper 3 machine 1 drives the swing detection rod 4 to swing, so that when the first photoelectric switch 6 and the second photoelectric switch 7 both receive the end position information of the swing detection rod 4, it indicates that the scraper 3 passes through the swing detection rod 4, and the running state of the chain driving the scraper 3 is detected through the swing of the swing detection rod 4, and the running speed of the chain can be detected through the interval time of the adjacent scrapers 3 passing through the swing detection rod 4, which has the advantages of simple structure and being not easily affected by complex environment, and further comprising a device box 8 arranged in the monitoring room, the device box 8 is internally provided with a controller 9, the first photoelectric switch 6 and the second photoelectric switch 7 are connected with the controller 9; the device box 8 is further provided with an alarm 10 connected with the controller 9. Thus, monitoring can be carried out in the monitoring room, and the influence of complex environment can be avoided. The controller 9 is a plc controller 9, which has a timing function.

[0025] The length of the swing detection rod 4 satisfies that when one of the scrapers 3 drives the swing detection rod 4 to swing, the adjacent scraper 3 does not collide with the swing detection rod 4. Thus, the passing state of one scraper is detected at a time, and better detection effect is achieved.

[0026] When the controller receives the interval time of the swing of the swing detection rod 4 detected by the speed detection mechanism, which is not within the set safety range, the controller 9 controls the alarm 10 to send an alarm signal, the interval time of the swing can be set according to the running speed of the chain according to the safety requirement, the running speed of the chain can be detected through the interval time of the adjacent scrapers 3 passing through the swing detection rod 4. When one of the first photoelectric switch 6 and the second photoelectric switch 7 receives the position information of the swing detection rod 4 for a long time, it indicates that the chain is stopped, and the alarm 10 alarms. When the first photoelectric switch 6 and the second photoelectric switch 7 do not receive the position information of the swing detection rod 4 within the set time interval, it also indicates that the chain is stopped, and the alarm 10 alarms.

[0027] The region where the swing detection rod 4 contacts with the scraper 3 is provided with an anti-collision layer 11. Thus, the swing detection rod 4 and the scraper 3 are prevented from colliding violently and being damaged, and large collision noise is also avoided.

[0028] Example 2: The difference between this embodiment and example 1 is that as shown in Figure 3 and Figure 4 The horizontal strip groove 12 is arranged on the cross frame 5, and the first photoelectric switch 6 and the second photoelectric switch 7 are installed in the strip groove 12 and fixed by the fastening nut 13. In this way, the first photoelectric switch 6 and the second photoelectric switch 7 can be moved along the strip groove 12 according to the swing amplitude of the swing detection rod 4 to realize position adjustment, and then fixed by the fastening nut 13.

[0029] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application has been made with reference to the foregoing embodiments, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of the present application.

Claims

1. A boiler slagging chain monitoring alarm device, characterized by, The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism. The utility model discloses a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism. The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism.

2. A device for monitoring and alarming of a boiler slagging chain according to claim 1, characterized in that, The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism.

3. A device for monitoring and alarming of a boiler slagging chain as claimed in claim 1, wherein The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism.

4. A device for monitoring and alarming of a boiler slagging chain according to claim 1, characterized in that, The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism.

5. A device for monitoring and alarming of a boiler slagging chain as claimed in claim 1, wherein The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism.

6. A device for monitoring and alarming of a boiler slagging chain according to claim 1, characterized in that, The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism. The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism. The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism. The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism. The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism. The utility model relates to a speed detection mechanism for scraper (1) and belongs to the field of scraper speed detection mechanism. 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