Intelligent monitoring, early warning and control system for stock bin

Abstract

The invention discloses an intelligent monitoring, early warning and control system for a stock bin in the technical field, which comprises a stock bin material flow monitoring device arranged around the stock bin, a gate arranged at an outlet of the stock bin, and a stock bin early warning control system, an audible and visual alarm and a gate control box which are arranged outside the stock bin, the stock bin early warning control system is electrically connected with the stock bin material flow monitoring device, the audible and visual alarm and the gate control box, when the stock bin early warning control system receives a bin collapse signal of the stock bin material flow monitoring device, starting signals are sent to the gate control box and the audible and visual alarm, the gate control box controls the gate to be closed, and the audible and visual alarm is started. And the audible and visual alarm sends an evacuation prompt to surrounding workers. According to the whole process from stock bin storage to bin opening and discharging, the material condition in the stock bin is monitored in an omnibearing mode, terminal processing and timely feedback are carried out on early warning signals, and the occurrence of bin collapse accidents is effectively prevented.

Description

Technical Field

[0001] The invention relates to an intelligent monitoring, early warning and control system for a silo, belonging to the technical field of coal storage. Background Art

[0002] With the continuous development of the coal industry, the safety requirements for coal storage are becoming higher and higher. However, during the coal storage process, due to the high moisture content of the material and the arching and blocking of the material in the silo, silo collapse accidents are very likely to occur, causing casualties and equipment damage. Traditional silo management often relies on manual inspection and operation, which is inefficient and has safety hazards. With the development of science and technology, silo collapse prevention technology is also constantly improving. Intelligent technology can realize automatic monitoring and remote control of silos, reduce manual intervention, and improve work efficiency and safety. With the development of sensor technology, Internet of Things, big data analysis, artificial intelligence and other technologies, intelligent technology is being used more and more widely in the industrial field. The application of these technologies can improve the monitoring, early warning and control capabilities of silos, thereby effectively preventing the occurrence of silo storage accidents.

[0003] The existing monitoring system is unable to detect abnormal conditions in some hidden areas of the silo in a timely manner. Phenomena such as silo arching, high moisture content in the silo, and silo blockage can easily lead to silo breach accidents, causing casualties and equipment damage, and poses certain risks. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an intelligent silo monitoring, early warning and control system that can monitor the material status in the silo in all directions, perform terminal processing on the early warning signal, provide timely feedback, and effectively prevent the occurrence of silo collapse accidents.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0006] The present invention provides an intelligent monitoring, early warning and control system for a silo, comprising a silo material flow monitoring device installed around the silo, a gate installed at the silo outlet, and a silo early warning control system, an audible and visual alarm and a gate control box installed outside the silo. The silo early warning control system is electrically connected to the silo material flow monitoring device, the audible and visual alarm and the gate control box respectively, and when the silo early warning control system receives a silo burst signal from the silo material flow monitoring device, it sends a start signal to the gate control box and the audible and visual alarm, the gate control box controls the gate to close, and the audible and visual alarm sends an evacuation reminder to surrounding staff.

[0007] Furthermore, the silo material flow monitoring device includes a 3D radar monitoring device installed at the upper end of the silo inlet. When the 3D radar monitoring device detects that the volume of the material in the silo suddenly decreases or the shape suddenly changes, it sends a silo collapse signal to the silo early warning control system.

[0008] Furthermore, the silo material flow monitoring device includes a liquid level sensor installed at the silo outlet. The liquid level sensor monitors the moisture content at the silo outlet in real time when the silo is in a storage state and the gate remains closed. When the liquid level sensor detects that the moisture content at the silo outlet exceeds a set value, it sends a water combing signal to the silo early warning control system. The silo early warning control system opens the gate through the gate control box to an angle that can only drain the moisture in the silo, and activates the sound and light alarm to send an evacuation reminder to the surrounding staff.

[0009] Furthermore, the silo material flow monitoring device includes an inclined material level switch vertically installed on one side of the silo discharge port. When the inclined material level switch is touched and tilted by the escaping material, a silo collapse signal is sent to the silo early warning control system.

[0010] Furthermore, it also includes an arch-breaking device circumferentially fixed to the inner wall of the silo and a control box for the arch-breaking device installed outside the silo. The silo early warning control system is electrically connected to the control box for the arch-breaking device. When the silo early warning control system receives an arch-starting signal from the silo material flow monitoring device, it sends a signal to the control box for the arch-breaking device to start the arch-breaking device to vibrate the material in the silo to drop.

[0011] Furthermore, the silo material flow monitoring device includes a camera fixedly installed circumferentially outside the silo. When the camera detects that the material flow at the silo outlet suddenly increases, it sends a silo burst signal to the silo early warning control system. When the camera detects that the material flow at the silo outlet suddenly decreases, it sends an arch signal to the silo early warning control system.

[0012] Furthermore, a chute is installed at the bottom of the silo discharge port, and the silo material flow monitoring device includes a surge plate flow meter installed on the bottom plate of the chute. When the surge plate flow meter detects that the material flow impact flow on the bottom plate of the chute suddenly increases, a silo burst signal is sent to the silo early warning control system. When the surge plate flow meter detects that the material flow impact flow on the bottom plate of the chute suddenly decreases, an arch signal is sent to the silo early warning control system.

[0013] Furthermore, the silo material flow monitoring device includes a baffle switch installed at the chute outlet. When the baffle switch is pushed by the escaping material, it sends a silo burst signal to the silo early warning control system.

[0014] Furthermore, it also includes a plant-wide control room electrically connected to the silo early warning control system. When the silo early warning control system receives a silo collapse signal or an arching signal, it simultaneously transmits it to the plant-wide control room.

[0015] Furthermore, when a power outage occurs in the silo material flow monitoring device or the silo early warning control system, the gate is automatically closed.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides an intelligent monitoring, early warning and control system for silos, which mainly focuses on the entire process from silo storage to opening and discharging, monitors the material status in the silo in all directions, performs terminal processing on early warning signals, and provides timely feedback to effectively prevent silo collapse accidents. When a silo collapse accident occurs, effective measures are taken to avoid casualties and equipment damage. The invention can effectively improve the safety level of coal storage, reduce maintenance costs, improve the safety and reliability of coal production, reduce accidents, and ensure the safety of personnel and the environment.

[0018] Second, in the present invention, when the liquid level sensor is in the storage state of the silo and the gate remains closed, the water content at the silo outlet is monitored in real time. When the water content exceeds the set value of the liquid level sensor, the silo early warning control system sends a silo collapse signal, and transmits the signal to the gate control box and the sound and light alarm to remind the surrounding staff to evacuate, and control the gate under the silo to slowly open a small angle to timely drain the water in the silo to avoid casualties caused by sudden opening;

[0019] 3. In the present invention, the inclined material level switch is installed in a vertical state. When the material silo is discharged, the material silo leaks out and touches the material level switch, causing it to tilt. At this time, the silo early warning control system sends a silo collapse signal and transmits the signal to the gate control box and the sound and light alarm, controlling the gate under the silo to close automatically and reminding the surrounding staff to evacuate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 A schematic diagram of an intelligent monitoring, early warning and control system for a silo provided in Example 1 of the present invention.

[0022] Figure 2 A schematic diagram of the installation of a silo arch breaking device of an intelligent silo monitoring, early warning and control system provided in Embodiment 1 of the present invention;

[0023] Figure 3 A schematic diagram of an intelligent silo monitoring, early warning and control system for a silo provided in Embodiment 1 of the present invention;

[0024] Among them: 1. Silo material flow monitoring device; 2. Silo early warning control system; 3. Sound and light alarm; 4. Gate control box; 5. Arch breaking device control box; 6. Plant control room; 7. Gate; 8. Chute; 9. Material receiving device; 10. Arch breaking device; 101. 3D radar; 102. Camera; 103. Liquid level sensor; 104. Inclined material level switch; 105. Punch plate flowmeter; 106. Baffle switch. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0026] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention.

[0027] Example:

[0028] This embodiment provides an intelligent monitoring, early warning and control system for silos. The main operating environment is that during normal storage and discharge of silos, silo collapse accidents are very likely to occur due to silo arching, high moisture content in the silo, and silo blockage. To address this problem, an intelligent early warning system is proposed that monitors the material status in the silo from storage to opening and discharging, and performs terminal processing on early warning signals, providing timely feedback to prevent accidents that cause casualties and equipment damage. Figure 1-3 , including a silo material flow monitoring device 1 for monitoring abnormal conditions of materials in the silo and at the silo outlet. The silo material flow monitoring device 1 is installed around the silo, and each monitoring signal is connected to the silo early warning control system 2 through a network cable and a cable, and is connected to the plant control room 6 through a network cable and a cable; the silo early warning control system 2 is electrically connected to the sound and light alarm 3, the gate control box 4 and the arch breaking device control box 5 respectively, controls the sound and light alarm 3 to send out an abnormal signal alarm, and at the same time, the gate control box 4 starts the gate closing function, and the gate 7 installed at the silo outlet is closed in time to avoid accidents causing casualties; the arch breaking device 10 is circumferentially fixed to the inner wall of the silo, and the arch breaking device control box 5 starts the silo arch breaking function by receiving the arch breaking signal of the silo early warning control system 2, effectively preventing the occurrence of silo collapse accidents caused by arching.

[0029] See also Figure 2-3The silo material flow monitoring and early warning device 1 includes a 3D radar monitoring device 101, a camera 102, a liquid level sensor 103, an inclined material level switch 104, a punch plate flowmeter 105 and a baffle switch 106; the 3D radar monitoring device 101 is installed at the upper end of the silo inlet, and the radar movement path is planned and controlled by software through multiple mechanical arms, and the material type distribution in the silo is imaged and scanned from different angles, the inventory volume is accurately measured, and the silo capacity level is accurately controlled. When the 3D radar monitoring device 101 detects that the volume of the material in the silo suddenly decreases or the shape suddenly changes, the silo early warning control system 2 sends a silo collapse signal and transmits the signal to the gate control box 4 and the sound and light alarm 3. The gate control box 4 controls the lower gate 7 of the silo to close automatically, and the sound and light alarm 3 sends a reminder to the surrounding staff to evacuate; when the volume or shape does not change, the silo early warning control system 2 sends a silo blocking or arching signal, and transmits the signal to the gate control box 4 and the arch breaking device control box 5, controls the gate 7 to close and starts the arch breaking device 10 at the same time.

[0030] It should be noted that the camera 102 is fixedly installed outside the silo in the circumferential direction. The monitoring range of the camera 102 is the outlet of the chute 8 at the bottom of the silo. The video monitors the change of the material flow. When the video shows that the outlet material flow suddenly increases, the silo early warning control system 2 sends a silo collapse signal, and transmits the signal to the gate control box 4 and the sound and light alarm 3, controls the silo lower gate 7 to automatically close, and reminds the surrounding staff to evacuate; when the outlet material flow suddenly decreases, the silo early warning control system 2 sends a silo blocking or arching signal, and transmits the signal to the gate control box 4 and the arch breaking device control box 5, controls the gate 7 to close and starts the arch breaking device 10. The liquid level sensor 103 monitors the water content at the silo outlet in real time when the silo storage gate remains closed. When the water content exceeds the set value of the liquid level sensor 103, the silo early warning control system 2 sends a silo collapse signal, and transmits the signal to the gate control box 4 and the sound and light alarm 3, reminds the surrounding staff to evacuate, and controls the silo lower gate 7 to slowly open a small angle, timely drain the water in the silo, and avoid casualties caused by sudden opening.

[0031] In addition, the tilting material level switch 104 is installed on one side of the chute 8 in a vertical state. When materials are released from the silo during the discharge process, the material level switch 104 is touched and tilted. At this time, the silo early warning control system 2 sends a silo collapse signal, and transmits the signal to the gate control box 4 and the sound and light alarm 3, controls the silo lower gate 7 to close automatically, and reminds the surrounding staff to evacuate. The impact plate flow meter 105 is installed on the bottom plate of the chute 8. By real-time monitoring of the impact flow changes of the material flow on the bottom plate of the chute 8, the impact plate flow meter 105 shows that the material flow rate suddenly increases. At this time, the silo early warning control system 2 sends a silo collapse signal, and transmits the signal to the gate control box 4 and the sound and light alarm 3, controls the silo lower gate 7 to close automatically, and reminds the surrounding staff to evacuate; when the flow rate suddenly decreases, the silo early warning control system 2 sends a silo blockage or arching signal, and transmits the signal to the arch breaking device control box 5 to start the arch breaking device 10. The baffle switch 106 is installed at the outlet of the chute 8. When a silo breach accident occurs, the escaping materials push the baffle switch 106. At this time, the silo early warning control system 2 transmits the silo breach signal to the gate control box 4 and the sound and light alarm 3, controls the silo lower gate 7 to close automatically, and reminds the surrounding staff to evacuate.

[0032] In this embodiment, the plant-wide control room 6 is electrically connected to the silo early warning control system 2. When any device in the silo monitoring device 1 detects an abnormal signal, the silo early warning control system 2 will transmit the signal to the plant-wide control room 6. The staff can observe the material flow in the silo in real time in the control room 6 to ensure the safety of the personnel and grasp the material situation in the silo. In the silo monitoring and early warning device 1, two or three devices can be selected for monitoring according to different working conditions, and the specific installation position of the device can be determined according to different working environments to ensure the reliable and effective operation of the device. When any device detects a signal of silo collapse or silo blocking and arching, the silo early warning control system 2 will control the gate 7 to work or start the arch breaking device 10, and control the sound and light alarm 3 to send out a danger signal until the safety hazard is eliminated and the gate 7 is fully opened to continue discharging. The silo arch breaking device 10 is installed within 1-2m of the intersection of the silo cone section and the straight section. When the silo early warning control system 2 sends a silo arching signal, the silo gate 7 is controlled to be closed, and the arch breaking device 10 is opened at the same time. Its working principle is that when the arch breaking device 10 receives the arch breaking signal, the hydraulic push rod is started to extend, the material in the vibrating silo falls, and the arch breaking function is realized. The silo material flow monitoring device 1 and the silo early warning control system 2 both have power failure protection measures. When a power failure occurs, the lower gate 7 of the silo is automatically closed.

[0033] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

[0034] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0035] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the process in the flowchart. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0036] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0037] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An intelligent monitoring, early warning and control system for silos, characterized in that: The invention comprises a silo material flow monitoring device (1) installed around the silo, a gate (7) installed at the silo outlet, and a silo early warning control system (2), an audible and visual alarm (3) and a gate control box (4) installed outside the silo. The silo early warning control system (2) is electrically connected to the silo material flow monitoring device (1), the audible and visual alarm (3) and the gate control box (4) respectively. When the silo early warning control system (2) receives a silo collapse signal from the silo material flow monitoring device (1), it sends a start signal to the gate control box (4) and the audible and visual alarm (3), so that the gate control box (4) controls the gate (7) to close, and the audible and visual alarm (3) sends an evacuation reminder to surrounding staff.

2. The intelligent monitoring, early warning and control system for silos according to claim 1 is characterized in that: The silo material flow monitoring device (1) comprises a 3D radar monitoring device (101) installed at the upper end of the silo inlet. When the 3D radar monitoring device (101) detects that the volume of the material in the silo suddenly decreases or the shape suddenly changes, it sends the silo collapse signal to the silo early warning control system (2).

3. The intelligent monitoring, early warning and control system for silos according to claim 1 is characterized in that: The silo material flow monitoring device (1) comprises a liquid level sensor (103) installed at the silo outlet, wherein the liquid level sensor (103) monitors the water content at the silo outlet in real time when the silo is in a storage state and the gate remains closed, and when the liquid level sensor (103) detects that the water content at the silo outlet exceeds a set value, the liquid level sensor (103) sends a water removal signal to the silo early warning control system (2), and the silo early warning control system (2) opens the gate (7) to an angle that can only remove the water in the silo through the gate control box (4), and activates the sound and light alarm (3) to send an evacuation reminder to surrounding staff.

4. The intelligent monitoring, early warning and control system for silos according to claim 1 is characterized in that: The silo material flow monitoring device (1) comprises an inclined material level switch (104) vertically mounted on one side of the silo discharge port. When the inclined material level switch (104) is touched by the escaping material and tilted, it sends the silo early warning control system (2) the silo breach signal.

5. The intelligent monitoring, early warning and control system for silos according to claim 1 is characterized in that: It also includes an arch-breaking device (10) circumferentially fixed to the inner wall of the silo and an arch-breaking device control box (5) installed outside the silo, the silo early warning control system (2) being electrically connected to the arch-breaking device control box (5), and when the silo early warning control system (2) receives an arch-starting signal from the silo material flow monitoring device (1), it sends a signal to the arch-breaking device control box (5) to start the arch-breaking device (10) to vibrate the material in the silo to drop.

6. The intelligent monitoring, early warning and control system for silos according to claim 5 is characterized in that: The silo material flow monitoring device (1) comprises a camera (102) fixedly installed circumferentially outside the silo. When the camera (102) detects that the material flow at the silo discharge port suddenly increases, the camera (102) sends the silo collapse signal to the silo early warning control system (2). When the camera (102) detects that the material flow at the silo discharge port suddenly decreases, the camera (102) sends the silo arch signal to the silo early warning control system (2).

7. The intelligent monitoring, early warning and control system for silos according to claim 5 is characterized in that: A chute (8) is installed at the bottom of the silo discharge port, and the silo material flow monitoring device (1) includes a plate flow meter (105) installed on the bottom plate of the chute (8). When the plate flow meter (105) detects that the material flow impact flow on the bottom plate of the chute (8) suddenly increases, it sends the silo burst signal to the silo early warning control system (2). When the plate flow meter (105) detects that the material flow impact flow on the bottom plate of the chute (8) suddenly decreases, it sends the arch signal to the silo early warning control system (2).

8. The intelligent monitoring, early warning and control system for silos according to claim 7 is characterized in that: The silo material flow monitoring device (1) comprises a baffle switch (106) installed at the outlet of the chute (8). When the baffle switch (106) is pushed by the escaping material, it sends the silo burst signal to the silo early warning control system (2).

9. The intelligent monitoring, early warning and control system for silos according to claim 1 is characterized in that: It also includes a plant-wide control room (6) electrically connected to the silo early warning control system (2); when the silo early warning control system (2) receives the silo collapse signal or the arching signal, it simultaneously transmits it to the plant-wide control room (6).

10. The intelligent monitoring, early warning and control system for silos according to claim 1 is characterized in that: When the silo material flow monitoring device (1) or the silo early warning control system (2) loses power, the gate (7) automatically closes.

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