An automatic monitoring and alarm concentrated pool mud scraper

Abstract

The utility model discloses a kind of automatic monitoring and alarm's concentration pool mud scraper, including circular concentration pool, mud scraper, multiple dry reed tube magnetron switch, magnet device, alarm warning light and PLC controller, one end of mud scraper is arranged in the center of concentration pool, the other end is arranged on the pool rim of concentration pool, mud scraper is arranged in the center of concentration pool one end as center, with the pool rim of concentration pool as circumference to do circular motion, multiple dry reed tube magnetron switch is fixed on pool rim, magnet device is installed in one end of mud scraper arranged on pool rim, each dry reed tube magnetron switch is connected with PLC controller signal, PLC controller is connected with alarm warning light signal.The utility model can find mud scraper operation anomaly in time, reduce artificial inspection frequency, reduce safety risk, and effectively prevent the occurrence of concentration pool serious fault such as death.

Description

Technical fields:

[0002] This utility model relates to the field of alarm equipment technology, specifically to an automatic monitoring and alarm sludge scraper for thickeners. Background technology:

[0004] The existing sludge scraper in the thickener has the following problems: 1. Frequent inspections are required: The sludge scraper of the thickener's traveling device requires regular inspections during normal operation, resulting in additional manpower consumption; 2. Safety hazards: In winter, low temperatures and heavy fog in the thickener pose safety hazards for personnel conducting inspections; 3. Equipment failure risks: In winter, the scraper's track is prone to icing, which may cause the scraper to slip, posing a risk of the thickener being crushed, potentially leading to equipment damage and production interruption.

[0005] The root cause of these problems lies in the lack of an effective automatic monitoring and alarm mechanism, which makes it impossible to detect abnormal operation of the sludge scraper in a timely manner. Utility Model Content:

[0007] In view of this, the purpose of this utility model is to provide a sludge scraper for thickening tanks with automatic monitoring and alarm functions.

[0008] The purpose of this utility model is achieved by the following technical solution: an automatic monitoring and alarm sludge scraper for a thickener, comprising a circular thickener, a sludge scraper, multiple reed switches, a magnet device, an alarm warning light, and a PLC. One end of the sludge scraper is located at the center of the thickener, and the other end rests on the edge of the thickener. The sludge scraper moves in a circular motion around the edge of the thickener, with the end located at the center of the thickener as the center. Multiple reed switches are fixed on the edge of the thickener. The magnet device is installed at the end of the sludge scraper resting on the edge of the thickener. Each reed switch is signal-connected to the PLC controller, and the PLC controller is signal-connected to the alarm warning light. When the magnet device approaches any of the reed switches, the reed switch closes; when the magnet device moves away from any of the reed switches, the reed switch opens.

[0009] Furthermore, the thickening tank is provided with a sliding track along its edge, and the bottom of the end of the sludge scraper that is mounted on the edge of the tank is provided with a pulley, which runs within the sliding track.

[0010] Furthermore, the reed switch magnetically controls four reeds, which are evenly distributed along the outer edge of the pool.

[0011] Furthermore, the alarm warning light is located at the entrance of the concentration tank.

[0012] Advantages of this utility model:

[0013] This invention, through its automatic monitoring and alarm mechanism, can promptly detect abnormalities in the operation of the sludge scraper, reduce the frequency of manual inspections, lower safety risks, and effectively prevent serious malfunctions such as the thickener being crushed. Attached image description:

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the control principle of this utility model.

[0018] In the diagram, 1. Thickening tank, 11. Tank edge, 12. Sliding track, 2. Sludge scraper, 3. Reed switch magnetic control switch, 4. Magnet device, 5. Alarm warning light, 6. PLC controller. Detailed implementation method:

[0020] 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.

[0021] Example:

[0022] like Figure 1-2 As shown, this embodiment provides an automatic monitoring and alarm sludge scraper for a thickener, including a circular thickener 1, a scraper 2, multiple reed switch magnetic switches 3, a magnetic device 4, an alarm warning light 5, and a PLC controller 6. One end of the scraper 2 is located at the center of the thickener 1, and the other end rests on the edge 11 of the thickener 1, allowing the scraper 2 to move in a circular motion around the edge 11 of the thickener 1, thus agitating the contents of the thickener 1. To ensure smooth operation of the scraper 2, a sliding track 12 is provided on the edge 11 of the thickener 1. A pulley (not shown) is located at the bottom of the end of the scraper 2 resting on the edge 11. The pulley runs within the sliding track 12, thereby reducing the coefficient of friction between the thickener 1 and the scraper 2 and improving the smoothness of the equipment's operation.

[0023] Multiple reed switch magnetic switches 3 are fixed on the pool edge 11. The number of reed switches 4 is determined according to the size of the thickening tank 1 and the operating speed of the sludge scraper 2. In this invention, four reed switches 4 are used and are evenly distributed and installed on the outer edge of the pool edge 11. The magnet device 4 is installed at one end of the sludge scraper 2 that is mounted on the pool edge 1. Each reed switch 3 is connected to the PLC controller 6, and the PLC controller 6 is connected to the alarm warning light 5. When the magnet device 4 approaches any reed switch 3, the reed switch 3 closes; when the magnet device 4 moves away from any reed switch 3, the reed switch 3 opens.

[0024] In this embodiment, before the equipment operates, a cyclic control program is written through the PLC controller 6 to pre-set the running time between each pair of adjacent reed switch magnetic control switches 3 and the magnet device 4. In this embodiment, the four reed switches magnetic control switches 3 are evenly distributed, meaning the distance between each pair of adjacent reed switches magnetic control switches 3 is 1 / 4 of a rotation of the sliding track 12. The time for the sludge scraper 2 to complete one rotation around the pool edge 11 during normal operation is calculated, and then the time for one 1 / 4 rotation is determined. In this embodiment, the time for the sludge scraper 2 to complete one rotation around the pool edge during normal operation is 16 minutes, and the time for one 1 / 4 rotation is 4 minutes. The operating status of the sludge scraper 2 is monitored by the control program of the PLC controller 6. When the sludge scraper 2 fails to pass the reed switch magnetic control switch 3 at the 1 / 4 rotation point of the track within the set 1 / 4 rotation time, the PLC controller 6 outputs a signal to the external rotating alarm warning light 5. The alarm warning light 5 is located at the entrance of the thickening tank 1, so that personnel can promptly detect the alarm and avoid subsequent economic losses.

[0025] Working principle:

[0026] As the scraper 2 moves along the sliding track 12, the magnet device 4 installed on the moving front end of the scraper 2 passes through four reed switch magnetic control switches 3 in sequence. When the scraper 2 passes the reed switch magnetic control switch 3, the reed switch magnetic control switch 3 sends a signal to the PLC controller 6. The PLC controller 6 program is set to run for 4 minutes for 1 / 4 revolution. Under normal circumstances, the PLC controller 6 should receive a signal every 4 minutes, indicating that the scraper 2 is operating normally. If the PLC controller 6 does not detect the signal for the next 1 / 4 revolution point within 4 minutes, it is considered that the scraper 2 is operating abnormally. Once an abnormality is detected, the PLC controller 6 will immediately issue an alarm output signal, triggering the warning light alarm 5 installed at the entrance of the thickener 1. After seeing the warning light alarm 5, the personnel on duty can promptly go to check and handle the problem, avoiding more serious malfunctions.

[0027] This automatic monitoring and alarm mechanism can promptly detect abnormalities in the sludge scraper's operation, reducing the frequency of manual inspections, lowering safety risks, and effectively preventing serious malfunctions such as the thickener being crushed. Thus, even in winter when the thickener is foggy and the tracks are icy, abnormal sludge scraper operation can be detected in time, greatly reducing the risk of the thickener being crushed and improving the stability of production operations.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. An automatic monitoring and alarm sludge scraper for a thickener, characterized in that, The system includes a circular thickener, a sludge scraper, multiple reed switches, a magnetic device, an alarm indicator light, and a PLC controller. One end of the sludge scraper is located at the center of the thickener, and the other end rests on the edge of the thickener. The sludge scraper moves in a circular motion around the edge of the thickener, with the end at the center of the thickener as its center. Multiple reed switches are fixed on the edge of the thickener. The magnetic device is installed at the end of the sludge scraper resting on the edge of the thickener. Each reed switch is connected to the PLC controller, and the PLC controller is connected to the alarm indicator light. When the magnetic device approaches any of the reed switches, the reed switch closes; when the magnetic device moves away from any of the reed switches, the reed switch opens.

2. The sludge scraper for an automatic monitoring and alarm system in a thickener according to claim 1, characterized in that, The thickening tank is provided with a sliding track along its edge, and the bottom of the end of the sludge scraper that is mounted on the edge of the tank is provided with a pulley, which runs within the sliding track.

3. The sludge scraper for an automatic monitoring and alarm system in a thickener according to claim 2, characterized in that, The reed switch magnetically controls four openings, which are evenly distributed along the outer edge of the pool.

4. The sludge scraper for an automatic monitoring and alarm system in a thickener according to claim 3, characterized in that, The alarm warning light is located at the entrance of the concentration tank.

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