Vibrating screen plate monitoring system

Abstract

The utility model discloses a vibrating screen plate monitoring system, and relates to the technical field of vibrating screens. The monitoring system comprises a sieve plate falling identification card, a data gateway and an upper computer, the sieve plate falling identification card is connected to the sieve plate and comprises an accelerometer; the MCU module is electrically connected with the accelerometer; the LORA module is electrically connected with the MCU module; the data gateway is in communication connection with the LORA module, and the upper computer is in communication connection with the data gateway; during monitoring, the accelerometer is used for collecting acceleration information of the sieve plate and is in a normally open state, the MCU module and the LORA module are in a dormant state, and when the sieve plate is abnormal, the accelerometer awakens the MCU module and the LORA module and sends alarm information to the upper computer through the data gateway to remind related workers to process on site. And the phenomenon that the pipeline and the chute under the screen are blocked due to delayed discovering of falling of the screen plate is avoided, and the labor intensity of manual detection is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a vibrating screen plate monitoring system. Background Art

[0002] Vibrating screen is one of the important equipment in coal preparation plant. When working, the vibrating screen mainly uses the screen plate to separate materials with different particle sizes or characteristics. The screen plate of the vibrating screen in the coal preparation plant is mainly made of polyurethane, which has good wear resistance and water flow. The vibrating screen screen plate is mainly installed on the vibrating screen gauge seat. In the actual coal preparation process, vibration wear will occur between the screen plate and the vibrating screen gauge seat, which will cause the screen plate buckle to loosen and the screen plate to fall off easily. Once the vibrating screen screen plate falls off during the screening process, a large amount of oversized materials will enter the system along the screening chute and pipeline, causing serious blockage of the pipeline, the chute under the screen, etc., and even cause production suspension.

[0003] In the daily coal preparation process, coal preparation plants mainly use manual inspections to judge the detachment and looseness of screen plates. However, the traditional manual method has high labor intensity and low inspection efficiency. It is unable to make timely and effective judgments on the detachment of screen plates, and there is a serious lag, which cannot meet the coal preparation plant's needs for safe and efficient coal preparation. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a vibrating screen plate monitoring system.

[0005] The monitoring system includes: a sieve plate shedding identification card, a data gateway and a host computer;

[0006] The sieve plate shedding identification card is connected to the sieve plate, and the sieve plate shedding identification card comprises:

[0007] Accelerometer;

[0008] An MCU module is electrically connected to the accelerometer;

[0009] LORA module, electrically connected to the MCU module;

[0010] The data gateway is communicatively connected to the LORA module, and the host computer is communicatively connected to the data gateway; during monitoring, the accelerometer is used to collect acceleration information of the sieve plate and is in a normally open state, and the MCU module and the LORA module are in a dormant state. When an abnormality occurs, the accelerometer wakes up the MCU module and the LORA module, and sends an alarm message to the host computer through the data gateway.

[0011] Furthermore, a mounting groove matching the sieve plate detachment identification card is provided on the side wall of the sieve plate;

[0012] The sieve plate falling-off identification card is connected to the installation groove.

[0013] The beneficial effect of the technical solution provided by the utility model is that the accelerometer in the utility model is in a normally open state. Once an abnormality is found in the vibrating screen, data abnormality information is immediately sent to remind relevant staff to deal with it on site, thereby avoiding blockage of pipelines and under-screen chutes due to delayed discovery of screen plate shedding. Compared with traditional manual inspections, the vibrating screen screen plate monitoring system mainly uses the acceleration parameters of the screen plate to feedback the screen plate status. The entire monitoring process is sensitive and reliable, with a high level of automation, which greatly reduces the labor intensity of manual inspections. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a vibrating screen plate monitoring system provided by the utility model;

[0015] Figure 2 It is a structural schematic diagram of a screen plate shedding identification card provided by the utility model;

[0016] Figure 3 It is a schematic diagram of installing a sieve plate shedding identification card on a sieve plate provided by the utility model;

[0017] Figure 4 The utility model provides a display schematic diagram of a host computer display module.

[0018] Figure numerals: 1-data gateway; 2-host computer; 3-accelerometer; 4-sieve plate; 5-MCU module; 6-LORA module; 7-installation slot; 8-sieve plate detachment identification card. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] It should be noted that in this embodiment, the directions or positional relationships indicated by "bottom", "top", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] It should also be noted that, in this embodiment, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4 A vibrating screen sieve plate monitoring system includes: a sieve plate shedding identification card 8, a data gateway 1 and a host computer 2, the sieve plate shedding identification card 8 is installed on the sieve plate 4, the sieve plate shedding identification card 8 includes: an accelerometer 3, an MCU module 5 and a LORA module 6, the MCU module 5 is electrically connected to the accelerometer 3, the LORA module 6 is electrically connected to the MCU module 5, the data gateway 1 is communicatively connected to the LORA module 6, and the host computer 2 is communicatively connected to the data gateway 1;

[0024] Among them, the accelerometer 3 is used to collect the acceleration data of the sieve plate, and the model of the accelerometer 3 can be the accelerometer M-A352AD; the MCU module 5 is responsible for the overall control, and the model of the MCU module 5 can be FCM32F042C6T6; the LORA module 6 is responsible for information transmission, and the model of the LORA module 6 can be LM400TU.

[0025] It should be noted that when the vibrating screen is working normally, it will be fixed in a certain position and vibrate at a low frequency of about 10 to 15 Hz. Once the screen plate is squeezed or offset, it will cause the vibrating screen plate to move, rotate, or even fall. At this time, the inherent vibration frequency and movement posture of the screen plate will change, which can be used to determine whether the screen plate is in an abnormal state.

[0026] When the monitoring system in this embodiment is in use, the accelerometer 3 is in the normally open state, and the LORA module 6 and the MCU module 5 are in the normally dormant state. First, the accelerometer 3 collects the acceleration information of the sieve plate, and filters the noise caused by the low-frequency vibration of the vibrating screen by sampling the acceleration of the sieve plate and filtering it at a low frequency. Considering the transmission delay, the recognition response time within 3s can meet the demand. At this time, the mean value of the sampling result is a value within a certain range. When the sieve plate rotates and falls, the acceleration sampling result will be significantly different from the result in the steady state, and the acceleration value will change significantly. The set alarm threshold is used to accurately and quickly identify whether the sieve plate is in a falling state. Once the vibrating screen is abnormal, the MCU module 5 is immediately awakened, and the MCU module 5 controls the LORA module 6 to send an alarm message to the data gateway 1, and then transmits it to the host computer 2 through the data gateway 1 to complete the data transmission.

[0027] It is worth mentioning that the vibrating screen plate monitoring system can be used in mining, metallurgy, petroleum, chemical industry, building materials, water conservancy and other industries where vibrating screens are commonly used, such as the de-mediating screen and grading screen in the coal preparation plant; and through the accelerometer being in the normally open state, once the vibrating screen is found to be abnormal, the data abnormality information is immediately sent to remind the relevant staff to deal with it on site, so as to avoid the blockage of pipelines and chutes under the screen due to the delay in discovering the sieve plate falling off. Compared with the traditional manual inspection, the vibrating screen plate monitoring system mainly uses the acceleration parameters of the sieve plate to feedback the sieve plate status. The whole monitoring process is sensitive and reliable, with a high level of automation, which greatly reduces the labor intensity of manual inspection.

[0028] Furthermore, a plurality of sieve plates 4 are installed on the vibrating screen, and a mounting groove 7 may be opened on the side wall of each sieve plate 4. The accelerometer 3, MCU module 5 and LORA module 6 are encapsulated into a whole through a shell to form a sieve plate detachment identification card 8. The mounting groove 7 matches the size of the shell, and the shell is fixedly connected to the mounting groove 7, so that each sieve plate 4 can be monitored in real time.

[0029] In addition, in actual work, each vibrating screen has an independent equipment number, each sieve plate of each vibrating screen has an independent equipment number, and the sieve plate detachment identification card of each sieve plate has an independent equipment number. The storage module of the host computer 1 pre-stores the correspondence between the equipment number of each vibrating screen, the equipment number of each sieve plate on each vibrating screen, and the equipment number of the sieve plate detachment identification card of each sieve plate. The storage module of the host computer 1 also pre-stores the correspondence between the equipment number and the installation position of each sieve plate on each vibrating screen. The storage module of the host computer 1 also pre-stores the installation position information of each vibrating screen. When the acceleration of a certain sieve plate 4 is abnormal, the data abnormality information is sent to the host computer, and the display module of the host computer will display which sieve plate of which vibrating screen has abnormal acceleration according to the corresponding relationship. For example, see Figure 4The display module of the host computer will show that there is an abnormality in the 1-23-1 screen plate of the 2#235 vibrating screen in area 1 of the screening machine, so that the abnormal vibrating screen and the specific screen plate position can be displayed on the display module of the host computer, reminding relevant staff to deal with it on site to avoid blockage of pipelines and under-screen chutes due to delayed discovery of screen plate detachment.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibrating screen plate monitoring system, characterized in that: The monitoring system comprises: a sieve plate shedding identification card (8), a data gateway (1) and a host computer (2); The sieve plate detachment identification card (8) is connected to the sieve plate (4), and the sieve plate detachment identification card comprises: Accelerometer (3); An MCU module (5) is electrically connected to the accelerometer (3); A LORA module (6) is electrically connected to the MCU module (5); The data gateway (1) is connected to the LORA module (6) in communication, and the host computer (2) is connected to the data gateway (1) in communication; during monitoring, the accelerometer (3) is used to collect acceleration information of the sieve plate and is in a normally open state, and the MCU module (5) and the LORA module (6) are in a dormant state. When an abnormality occurs, the accelerometer (3) wakes up the MCU module (5) and the LORA module (6) and sends an alarm message to the host computer (2) through the data gateway (1).

2. The vibrating screen plate monitoring system according to claim 1, characterized in that: The side wall of the sieve plate (4) is provided with a mounting groove (7) matching the sieve plate fall-off identification card (8); The sieve plate fall-off identification card (8) is connected to the installation groove (7).

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