Novel intelligent sieve plate

Abstract

The utility model discloses a novel intelligent sieve plate, and relates to the technical field of sieve plates. The screen plate comprises a screen plate frame and a screen face connected into the screen plate frame. The mounting groove is formed in the side wall of the sieve plate frame; the sieve plate falling identification card is mounted in the mounting groove and is used for monitoring whether the sieve plate is in a falling state on the vibrating screen or not; the sieve plate falling identification card comprises a box body; the accelerometer, the MCU module and the LORA module are all connected in the box body, the MCU module is electrically connected with the accelerometer, and the LORA module is electrically connected with the MCU module. The screen plate falling identification card can monitor whether the screen plate is in a falling state on the vibrating screen or not, data abnormity information is sent immediately once abnormity is found, related workers are reminded to process on site, the phenomenon that pipelines and a chute below the screen are blocked due to screen plate falling finding delay 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 sieve plates, in particular to a novel intelligent sieve plate. 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 novel intelligent sieve plate.

[0005] The sieve plate comprises:

[0006] Screen frame,

[0007] A screen surface connected to the screen plate frame;

[0008] A mounting groove is provided on the side wall of the screen plate frame;

[0009] A sieve plate falling-off identification card is installed in the installation slot and is used to monitor whether the sieve plate is in a falling-off state on the vibrating screen;

[0010] The sieve plate shedding identification card comprises:

[0011] Box body;

[0012] The accelerometer, the MCU module and the LORA module are all connected in the box body, and the MCU module is electrically connected to the accelerometer, and the LORA module is electrically connected to the MCU module.

[0013] The beneficial effect of the technical solution provided by the utility model is that: in the utility model, a mounting groove is arranged on the screen plate frame, and a screen plate shedding identification card is installed in the mounting groove, so as to monitor whether the screen plate is in a shedding state on the vibrating screen. Once an abnormality is found, data abnormality information is immediately sent to remind relevant staff to deal with it on site, so as to avoid the blockage of pipelines and under-screen chutes due to delayed detection of screen plate shedding, thereby greatly reducing the labor intensity of manual inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a new type of intelligent sieve plate provided by the utility model;

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

[0016] Figure 3 It is a structural schematic diagram of a box body provided by the utility model;

[0017] Figure 4 This is a monitoring system diagram of a sieve plate shedding identification card provided by the utility model;

[0018] Figure 5 This is a screen plate shedding identification card system diagram provided by the utility model;

[0019] Figure 6 The utility model provides a display schematic diagram of a host computer display module.

[0020] Figure numerals: 1-screen plate frame; 2-screen surface; 3-installation groove; 4-screen plate fall-off identification card; 5-box body; 6-accelerometer; 7-MCU module; 8-LORA module; 9-data gateway; 10-host computer. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] See also Figure 1-Figure 6 A new type of intelligent screen plate includes: a screen plate frame 1 and a screen plate shedding identification card 4, the screen plate frame 1 is internally connected with a screen surface 2, a mounting groove 3 is opened on the side wall of the screen plate frame 1, the screen plate shedding identification card 4 is placed in the mounting groove 3, the screen plate shedding identification card 4 is used to monitor whether the screen plate is in a shedding state on the vibrating screen, the screen plate shedding identification card 4 includes: a box body 5, an accelerometer 6, an MCU module 7 and a LORA module 8; the box body 5 is hollow inside, and an opening and closing door is hinged on the side wall, the accelerometer 6, the MCU module 7 and the LORA module 8 are all installed in the box body 5, the MCU module 5 is electrically connected to the accelerometer 3, and the LORA module 6 is electrically connected to the MCU module 5.

[0026] When in use, place the sieve plate detachment identification card 4 in the installation slot 3, and then install the entire sieve plate on the vibrating screen. During monitoring, the LORA module 8 is communicated with the external data gateway 9, and the data gateway 9 is communicated with the host computer 10; wherein, the accelerometer 6 is used to collect the sieve plate acceleration data, and the model of the accelerometer 6 can be the accelerometer M-A352AD; the MCU module 7 is responsible for the overall control, and the model of the MCU module 7 can be FCM32F042C6T6; the LORA module 8 is responsible for information transmission, and the model of the LORA module 8 can be LM400TU.

[0027] 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.

[0028] When the monitoring system in this embodiment is in use, the accelerometer 6 is in a normally open state, and the LORA module 8 and the MCU module 7 are in a normally dormant state. First, the accelerometer 6 collects the acceleration information of the sieve plate, and filters out the noise effect of the low-frequency vibration of the vibrating screen on the acceleration by sampling the acceleration of the sieve plate and performing low-frequency filtering. Considering the transmission delay, it is determined that 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 detached state. Once the vibrating screen is abnormal, the MCU module 7 is immediately awakened, and the MCU module 7 controls the LORA module 8 to send an alarm message to the data gateway 9, which is then transmitted to the host computer 10 through the data gateway 9 to complete the data transmission and remind the staff.

[0029] It is worth mentioning that the sieve plate 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 coal preparation plants; and when installed on the vibrating screen and used, the accelerometer 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, so as to avoid blockage of pipelines and chutes under the screen due to delayed discovery of the sieve plate falling off. Compared with traditional manual inspections, the sieve plate greatly reduces the labor intensity of manual inspections.

[0030] It should also be noted that in actual work, multiple sieve plates are installed on the vibrating screen, 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 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 also pre-stores the correspondence between the equipment number and the installation position of each sieve plate on each vibrating screen, and the storage module of the host computer also pre-stores the installation position information of each vibrating screen; when the acceleration of a certain sieve plate 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 6 The 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.

[0031] 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 new type of intelligent sieve plate, characterized in that: The sieve plate comprises: Screen frame (1), A screen surface (2) connected to the screen plate frame (1); A mounting groove (3) is provided on the side wall of the sieve plate frame (1); A sieve plate falling-off identification card (4) is installed in the installation slot (3) and is used to monitor whether the sieve plate is in a falling-off state on the vibrating screen; The sieve plate falling off identification card (4) comprises: Box body (5); The accelerometer (6), the MCU module (7) and the LORA module (8) are all connected inside the box body (5), and the MCU module (7) is electrically connected to the accelerometer (6), and the LORA module (8) is electrically connected to the MCU module (7).

Images