Port coal pile spontaneous combustion monitoring system

Abstract

The invention discloses a port coal pile spontaneous combustion monitoring system, and relates to the field of port coal pile spontaneous combustion monitoring, the port coal pile spontaneous combustion monitoring system comprises a support unit, a monitoring unit, a release unit and a controller, the monitoring unit, the release unit and the controller are all installed on the support unit, the monitoring unit is in signal connection with the controller, and the release unit is in signal connection with the controller. The controller is in signal connection with the release unit, when the stacking height of the coal is gradually increased, the coal gradually burns the supporting rod, at the moment, the multiple puncture pipes penetrate into gaps of the coal and exist at different heights of the coal, and when the infrared thermal imaging camera monitors that the interior of the coal is burnt, a signal is transmitted to the controller, and the controller is controlled to release the coal. The controller controls the electromagnetic valve to be opened, the gas pipeline conveys carbon dioxide or liquid carbon dioxide into the coal for isolating oxygen, and meanwhile, the carbon dioxide can be input at regular time when combustion does not occur, so that combustion is prevented in advance.

Description

Technical Field

[0001] The present invention relates to the field of spontaneous combustion monitoring of coal piles in ports, and particularly to a spontaneous combustion monitoring system for coal piles in ports. Background Art

[0002] Port coal piles are mainly involved in the storage, loading, unloading and transportation of coal, etc., and are an important part of the bulk cargo business in ports. During the process of coal piling in ports, large mechanical equipment such as stacker-reclaimers and car dumpers are usually used. These devices can efficiently unload coal from cargo ships and stack it in designated yards. A yard is an area in a port specifically used for storing bulk cargo. For bulk cargo such as coal, the yard needs to have good drainage performance and foundation bearing capacity to ensure the safety of coal storage.

[0003] Since coal is stacked outdoors in the port and the stacking height of coal is relatively high, affected by the weather, high temperatures are generated, and spontaneous combustion is likely to occur, which is likely to cause relatively large economic losses.

[0004] Therefore, it is very necessary to propose a spontaneous combustion monitoring system for port coal piles to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a spontaneous combustion monitoring system for port coal piles to solve the problems that due to coal being stacked outdoors in the port and the stacking height of coal being relatively high, affected by the weather, high temperatures are generated, and spontaneous combustion is likely to occur, which is likely to cause relatively large economic losses.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A spontaneous combustion monitoring system for port coal piles includes a support unit, a monitoring unit, a release unit and a controller. The monitoring unit, the release unit and the controller are all installed on the support unit. The monitoring unit is signal-connected to the controller, and the controller is signal-connected to the release unit; The support unit includes a support rod, and a telescopic rod is telescopically arranged at the top of the support rod. The release unit includes a puncture tube and a gas pipeline. The gas pipeline is arranged inside the support rod. A plurality of puncture tubes are provided, and the plurality of puncture tubes are equidistantly distributed along the height direction of the support rod. One end of the plurality of puncture tubes is internally communicated with the gas pipeline, and an electromagnetic valve is arranged on the gas pipeline.

[0007] The monitoring unit includes an infrared thermal imaging camera and an electrochemical sensor.

[0008] Preferably, a chassis is fixed on the outer side of the bottom end of the support rod, a conical end is communicated with the bottom end of the chassis, a connection port is opened at the bottom end of the conical end, and the gas pipeline passes through the connection port.

[0009] Preferably, a plurality of the electrochemical sensors are provided, and the plurality of electrochemical sensors are equidistantly distributed along the height direction of the support rod.

[0010] Preferably, a fixed seat is fixed at the top of the telescopic rod, and a plurality of infrared thermal imaging cameras are provided. The plurality of infrared thermal imaging cameras are distributed around the outside of the fixed seat.

[0011] Preferably, a fixed plate is fixed at the inner top end of the support rod, the top end of the fixed plate is fixedly connected with an electric push rod, and the top end of the electric push rod is fixedly connected to the bottom end of the telescopic rod.

[0012] Preferably, a concentration sensor is fixed inside the support rod.

[0013] Technical effects and advantages of the present invention: 1. In the actual operation of the present invention, when the stacking height of the coal gradually increases, the coal will gradually bury the support rod. At this time, a plurality of puncture tubes will penetrate into the gaps of the coal and exist at different heights of the coal. When the infrared thermal imaging camera detects that combustion occurs inside the coal, it will transmit a signal to the controller, and the controller controls the solenoid valve to open. The gas pipeline will supply carbon dioxide or liquid carbon dioxide and transport it into the coal to isolate oxygen. At the same time, carbon dioxide can also be input regularly when combustion does not occur, so as to prevent combustion in advance.

[0014] 2. The overall release and monitoring are integrated, which can reduce the production cost, and the later maintenance and installation are relatively convenient. A concentration sensor is fixed inside the support rod to monitor the concentration of carbon dioxide inside the support rod and whether the gas pipeline is broken, ensuring the safe transportation of the gas pipeline. Moreover, since carbon dioxide is input from the gaps at different heights of the coal, the carbon dioxide can be more evenly distributed and easier to reach the ignition point. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the port coal spontaneous combustion monitoring system of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the fixed plate and the electric push rod of the present invention.

[0017] Figure 3 For the present invention Figure 1 The enlarged schematic diagram at position A.

[0018] In the figure: 1. Support rod; 2. Telescopic rod; 3. Electrochemical sensor; 4. Puncture tube; 5. Chassis; 6. Conical end; 7. Gas pipeline; 8. Fixed seat; 9. Infrared thermal imaging camera; 10. Fixed plate; 11. Electric push rod; 12. Concentration sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present invention provides a spontaneous combustion monitoring system for coal piles in ports as Figures 1 to 3 shown, which includes a support unit, a monitoring unit, a release unit, and a controller. The monitoring unit, the release unit, and the controller are all installed on the support unit. The monitoring unit is signal-connected to the controller, and the controller is signal-connected to the release unit. The overall device can be installed in the coal pile area of the port, and multiple such devices can be installed and evenly distributed in the coal pile area.

[0020] The monitoring unit is used to monitor whether harmful gases and combustion occur in the coal pile. If combustion occurs, carbon dioxide is released through the release unit for fire extinguishing to block oxygen.

[0021] To solve the problem that due to the open-air stacking of coal in the port and the relatively high stacking height of the coal, affected by the weather, high temperatures are generated, prone to spontaneous combustion, and likely to cause relatively large economic losses, a support unit is provided. The support unit includes a support rod 1, and a telescopic rod 2 is telescopically arranged at the top of the support rod 1. The release unit includes a puncture tube 4 and a gas pipeline 7. The gas pipeline 7 is arranged inside the support rod 1. There are multiple puncture tubes 4, and the multiple puncture tubes 4 are equidistantly distributed along the height direction of the support rod 1. One end of each of the multiple puncture tubes 4 is communicated with the inside of the gas pipeline 7, and a solenoid valve is arranged on the gas pipeline 7.

[0022] It should be noted that one end of the gas pipeline 7 is connected to a gas transmission device for transporting carbon dioxide.

[0023] In the actual operation of the present invention, when the stacking height of the coal gradually increases, the coal will gradually bury the support rod 1. At this time, the multiple puncture tubes 4 will penetrate into the gaps of the coal and exist at different heights of the coal. When the infrared thermal imaging camera 9 monitors that combustion occurs inside the coal, it will transmit a signal to the controller, and the controller controls the solenoid valve to open. The gas pipeline 7 will transport carbon dioxide or liquid carbon dioxide into the coal for oxygen isolation. At the same time, carbon dioxide can also be input regularly when no combustion occurs, thereby preventing combustion in advance.

[0024] The overall release and monitoring are integrated, which can reduce production costs, and later maintenance and installation are relatively convenient. Moreover, since carbon dioxide is input from the gaps at different heights of the coal, the distribution of carbon dioxide can be more uniform and it is easier to reach the ignition point.

[0025] The monitoring unit includes an infrared thermal imaging camera 9 and an electrochemical sensor 3. The electrochemical sensor 3 is used to monitor harmful gases generated during coal combustion, such as carbon monoxide, to avoid harm to personnel.

[0026] A chassis 5 is fixed to the outer side of the bottom end of the support rod 1. A conical end 6 is communicated with the bottom end of the chassis 5, and a connection port is opened at the bottom end of the conical end 6. The gas pipeline 7 passes through the connection port.

[0027] A plurality of electrochemical sensors 3 are provided, and the plurality of electrochemical sensors 3 are equidistantly distributed along the height direction of the support rod 1. A fixed seat 8 is fixed to the top of the telescopic rod 2. A plurality of infrared thermal imaging cameras 9 are provided, and the plurality of infrared thermal imaging cameras 9 are distributed around the outside of the fixed seat 8.

[0028] A fixing plate 10 is fixed to the inner top end of the support rod 1. The top end of the fixing plate 10 is fixedly connected to an electric push rod 11. The top end of the electric push rod 11 is fixedly connected to the bottom end of the telescopic rod 2. In the actual operation of the present invention, the fixing plate 10 is used to support the support rod 1, and at the same time, the inside of the support rod 1 and the inside of the telescopic rod 2 can be isolated to prevent the leaked gas from entering the inside of the telescopic rod 2.

[0029] In the actual operation of the present invention, by starting the electric push rod 11, the electric push rod 11 can drive the telescopic rod 2 to extend upward or retract downward, thereby changing the monitoring height of the infrared thermal imaging camera 9.

[0030] A concentration sensor 12 is fixed inside the support rod 1 to monitor the concentration of carbon dioxide inside the support rod 1 and to monitor whether the gas pipeline 7 is broken.

Claims

1. A port coal pile spontaneous combustion monitoring system, comprising a support unit, a monitoring unit, a release unit and a controller, characterized in that: The monitoring unit, the release unit and the controller are all installed on the support unit, the monitoring unit and the controller are connected by signal, and the controller and the release unit are connected by signal; The support unit comprises a support rod (1), a telescopic rod (2) is telescopically arranged at the top end of the support rod (1), the release unit comprises a puncture tube (4) and a gas pipeline (7), the gas pipeline (7) is arranged inside the support rod (1), a plurality of puncture tubes (4) are arranged, and the plurality of puncture tubes (4) are equidistantly distributed along the height direction of the support rod (1), one end of the plurality of puncture tubes (4) is connected to the inside of the gas pipeline (7), and a solenoid valve is arranged on the gas pipeline (7); The monitoring unit comprises an infrared thermal imaging camera (9) and an electrochemical sensor (3).

2. A port coal pile spontaneous combustion monitoring system according to claim 1, characterized in that: A chassis (5) is fixed to the outside of the bottom end of the support rod (1), the bottom end of the chassis (5) is connected to a conical end (6), the bottom end of the conical end (6) is provided with a connecting port, and the gas pipeline (7) passes through the connecting port.

3. A port coal pile spontaneous combustion monitoring system according to claim 1, characterized in that: A plurality of the electrochemical sensors (3) are provided, and the plurality of electrochemical sensors (3) are distributed at equal distances along the height direction of the support rod (1).

4. A port coal pile spontaneous combustion monitoring system according to claim 1, characterized in that: A fixing seat (8) is fixed to the top of the telescopic rod (2), and a plurality of infrared thermal imaging cameras (9) are provided, and the plurality of infrared thermal imaging cameras (9) are distributed around the outer side of the fixing seat (8).

5. A port coal pile spontaneous combustion monitoring system according to claim 1, characterized in that: A fixing plate (10) is fixed to the top end of the support rod (1), the top end of the fixing plate (10) is fixedly connected to an electric push rod (11), and the top end of the electric push rod (11) is fixedly connected to the bottom end of the telescopic rod (2).

6. A port coal pile spontaneous combustion monitoring system according to claim 1, characterized in that: A concentration sensor (12) is fixed inside the support rod (1).

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