Stop alarm applied to municipal sewage treatment magnetic coagulation mud scraper

Abstract

The utility model discloses a stalling alarm applied to a municipal sewage treatment magnetic coagulation mud scraper, and relates to the technical field of sewage treatment. The device comprises a photoelectric proximity switch, an audible and visual alarm and a control box, the photoelectric proximity switch is arranged on a cover plate of the coupler of the mud scraper and is positioned at a preset position of a rotating path of the coupler; the audible and visual alarm is mounted outside the control box; and a control system is arranged in the control box and is connected with the photoelectric proximity switch and the audible and visual alarm. The rotating state of the coupler of the mud scraper is detected in real time by arranging the photoelectric proximity switch, the time relay in the control system is immediately triggered once a specific mark or a part on the coupler is detected not to pass according to expectation, and the time relay is triggered if a signal of the photoelectric proximity switch is not received within a set time threshold value. And the control system immediately activates the audible and visual alarm to give out sound and light alarm so as to remind an operator to deal with a fault in time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field, especially be related to the stop alarm for municipal sewage treatment magnetic coagulation mud scraper. BACKGROUND

[0002] Magnetic coagulation mud scraper as the important equipment of magnetic coagulation high -efficient sedimentation tank, plays the vital role in depth treatment process. Its main function is to accelerate the formation of flocculation under the help of magnetic powder, and through the mud scraper arm, the sludge and magnetic powder mixture deposited in the pool bottom are scraped to the center mud discharge port, so as to realize the efficient solid-liquid separation.

[0003] At present, although magnetic coagulation mud scraper is equipped with motor control system, is provided with overload protection, but these measures are insufficient in the face of coupling bolt fracture, the existing motor control system can only send an alarm when the motor is overloaded, and the stop caused by the coupling bolt fracture cannot be responded immediately, because the bolt fracture does not necessarily cause the motor overload immediately. Due to the lack of real-time monitoring and alarm mechanism, once the stop fault occurs, it often needs to consume a lot of time and resources for cleaning and repairing, increases the operation cost. Long-term shutdown and repair work will directly affect the normal operation of the sewage treatment plant, reduce the production efficiency, and then affect the sewage treatment capacity of the whole city. There is no remote monitoring means, so that the management personnel are difficult to understand the equipment state in time, and increase the management difficulty.

[0004] Therefore, we provide the stop alarm for municipal sewage treatment magnetic coagulation mud scraper to solve the above problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model discloses a stop alarm for municipal sewage treatment magnetic coagulation mud scraper, including photoelectric proximity switch, audible -visual alarm and control box.

[0007] The photoelectric proximity switch is installed on the mud scraper coupling cover plate and is located at the predetermined position of the coupling rotation path, and is used to detect whether the specific mark or component on the coupling passes.

[0008] The audible -visual alarm is installed outside the control box, and the control box is fixed at the position near the mud scraper and easy to observe.

[0009] The control system is arranged in the control box, and the control system is connected with the photoelectric proximity switch and the audible -visual alarm.

[0010] The utility model further sets up, control system contains time relay, the setting time of time relay is the time that coupling of mud scraper completes a complete rotation needs.

[0011] The utility model further sets up, the sound light alarm ware includes loudspeaker and LED bulb, the LED bulb surrounds loudspeaker arrangement.

[0012] The utility model further sets up, control system is connected to the overload protection circuit of motor through a shared intermediate relay, utilizes same PLC input point to monitor motor overload state and stop rotation fault state.

[0013] The utility model further sets up, the connection between photoelectric proximity switch and control system adopts shielded cable, photoelectric proximity switch is built-in micro fan.

[0014] The utility model further sets up, control system is also equipped with GPRS module and wireless communication module, and control system establishes interactive communication link with remote monitoring center through wireless communication module.

[0015] The utility model has following beneficial effects:

[0016] 1, the utility model discloses a photoelectric proximity switch is set up in real time detection of the rotation state of coupling of mud scraper, detects specific mark or component on coupling and does not pass as expected immediately triggers time relay in control system, if does not receive the signal of photoelectric proximity switch in the setting time threshold, control system will immediately activate sound light alarm, and the sound and light alarm are sent, and remind operating personnel to handle the fault in time, significantly shorten the fault discovery time, avoid the greater loss that the long time stop rotation leads to.

[0017] 2, the utility model discloses that stop rotation alarm ware can intervene in the early stage of failure through timely discovery of failure, avoid the problem that the magnetic powder and sludge deposition of sedimentation tank bottom are too much because of the too long time of stop rotation, and early intervention can reduce the frequency of emptying and dredging of sedimentation tank, thereby save a large amount of manpower and material resources, timely repair failure can reduce the excessive wear and tear of equipment, prolong the service life of mud scraper, reduce the overall maintenance cost, quick failure detection and timely handling of failure, reduce the production interruption time caused by equipment failure, improve the overall production efficiency of sewage treatment plant, through effective failure monitoring and alarm system, ensure that mud scraper continues stable operation, maintain the high efficiency and reliability of sewage treatment.

[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Fig. 1 It is the whole structure connection diagram of the present application.

[0021] Fig. 2 It is the principle block diagram of the present application.

[0022] Fig. 3 It is the control system schematic diagram in the present application.

[0023] In the drawings, the component list represented by each number is as follows:

[0024] 100, photoelectric proximity switch; 200, sound-light alarm; 201, high-pitched loudspeaker; 202, LED bulb; 300, control box. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0026] EMBODIMENT

[0027] Please refer to Figs. 1-3 The present application is a stop alarm applied to the municipal sewage treatment magnetic coagulation mud scraper, which comprises a photoelectric proximity switch 100, a sound-light alarm 200, and a control box 300.

[0028] The photoelectric proximity switch 100 is installed on the mud scraper coupling cover plate and located at a predetermined position of the coupling rotation path, which is used to detect whether a specific mark or component on the coupling passes.

[0029] The sound-light alarm 200 is installed outside the control box 300, and the control box 300 is fixed at a position near the mud scraper which is easy to observe.

[0030] The control system is arranged inside the control box 300, and the control system is connected with the photoelectric proximity switch 100 and the sound-light alarm 200.

[0031] Specifically, the control system comprises a time relay, a setting time of the time relay is a time required for the mud scraper coupling to complete a complete rotation; the control system is connected to an overload protection circuit of the motor through a shared intermediate relay, and a same PLC input point is used to monitor the motor overload state and the stop rotation fault state; the control system is also equipped with a GPRS module and a wireless communication module, and the control system establishes an interactive communication link with the remote monitoring center through the wireless communication module.

[0032] Further, the sound-light alarm 200 comprises a loudspeaker 201 and LED bulbs 202, the LED bulbs 202 are arranged around the loudspeaker 201; a connection between the photoelectric proximity switch 100 and the control system adopts a shielded cable, and the photoelectric proximity switch 100 is internally provided with a micro fan.

[0033] The stop rotation alarm provided in the technical solution aims to solve the problem that the stop rotation of the magnetic coagulation mud scraper caused by the fracture of the coupling bolt cannot be found in time; and specific descriptions about the structure setting of the stop rotation alarm are as follows:

[0034] The photoelectric proximity switch 100 is installed on a coupling cover plate of the mud scraper and is located at a predetermined position of a rotation path of the coupling. The switch is used to detect whether a specific mark or component on the coupling passes, so as to judge whether the mud scraper is normally running. The running state of the mud scraper is monitored in real time through the photoelectric proximity switch 100, and once a fault is detected, an alarm is triggered immediately to help the operator find and handle the fault quickly.

[0035] The sound-light alarm 200 is installed outside the control box 300 of the mud scraper and is composed of the loudspeaker 201 and the LED bulbs 202 arranged around the loudspeaker 201. When a fault is detected, the sound-light alarm 200 sends out sound and light alarms to attract the attention of the workers.

[0036] The control box 300 is fixed at a position near the mud scraper which is easy to observe, and is internally provided with a control system. The control system is connected with the photoelectric proximity switch 100 and the sound-light alarm 200, is responsible for receiving and processing the signals of the photoelectric proximity switch 100, and activates the sound-light alarm 200 when necessary.

[0037] The time relay is arranged inside the control system and is used to set a time threshold, the time is equal to a time required for the mud scraper coupling to complete a complete rotation. If no signal of the photoelectric proximity switch 100 is received within the time threshold, the control system will consider that a fault occurs and trigger an alarm; the intermediate relay is used to transmit the fault signal of the control system to the overload protection circuit of the motor, and the motor overload state and the stop rotation fault state are monitored through the same PLC input point, so that the system design is simplified.

[0038] The GPRS module and the wireless communication module are integrated in the control system, so that the control system can establish an interactive communication link with a remote monitoring center, and real-time fault reporting and remote monitoring are realized.

[0039] In addition, the photoelectric proximity switch 100 is built-in with a micro fan for removing dust on the sensor surface, so as to ensure detection accuracy.

[0040] The specific working steps of the stop alarm

[0041] After the control system is started, the time relay starts timing, and waits for receiving the signal of the photoelectric proximity switch 100.

[0042] The photoelectric proximity switch 100 detects whether the specific mark or component on the coupling passes, and if the mark is detected, the photoelectric proximity switch 100 sends a signal to the control system.

[0043] After the control system receives the signal, the time relay is reset, and the next signal is continued to be waited for.

[0044] If the control system does not receive the signal of the photoelectric proximity switch 100 within the set time threshold (i.e. the time required for the wiper coupling to complete a complete rotation), the time relay triggers a fault signal.

[0045] The control system transmits the fault signal to the overload protection circuit of the motor through the intermediate relay, and activates the audible and visual alarm 200 to issue sound and light alarm.

[0046] The control system transmits the fault information to the remote monitoring center through the GPRS module and the wireless communication module, so that the management personnel can take corresponding measures.

[0047] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A stop alarm applied to the magnetic coagulation mud scraper of municipal sewage treatment, comprising a photoelectric proximity switch (100), an audible and visual alarm (200), and a control box (300), characterized in that: the photoelectric proximity switch (100) is installed on the coupling cover plate of the mud scraper and is located at a predetermined position of the coupling rotation path for detecting whether a specific mark or component on the coupling passes; the audible and visual alarm (200) is installed outside the control box (300), and the control box (300) is fixed at a position near the mud scraper that is easy to observe; a control system is arranged inside the control box (300), and the control system is connected with the photoelectric proximity switch (100) and the audible and visual alarm (200).

2. The stall alarm for a magnetic coagulation mud scraper for municipal sewage treatment according to claim 1, characterized in that, The control system includes a time relay, and the set time of the time relay is the time required for the coupling of the mud scraper to complete a complete rotation.

3. The stall alarm for use in a magnetic coagulation mud scraper for municipal sewage treatment according to claim 1, characterized in that, The audible and visual alarm (200) includes a loudspeaker (201) and an LED bulb (202), and the LED bulb (202) is arranged around the loudspeaker (201).

4. The stall alarm for use in a magnetic coagulation mud scraper for municipal sewage treatment according to claim 1, characterized in that, The control system is connected to the overload protection circuit of the motor through a common intermediate relay, and the same PLC input point is used to monitor the overload state and stop failure state of the motor.

5. The stall alarm for use in a magnetic coagulation mud scraper for municipal sewage treatment according to claim 1, characterized in that, The connection between the photoelectric proximity switch (100) and the control system adopts a shielded cable, and the photoelectric proximity switch (100) is internally provided with a micro fan.

6. The stall alarm for use in a magnetic coagulation mud scraper for municipal sewage treatment according to claim 1, characterized in that, The control system is also equipped with a GPRS module and a wireless communication module, and the control system establishes an interactive communication link with a remote monitoring center through the wireless communication module.

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