Intelligent safety monitoring equipment for coal conveying in power plant

Abstract

The invention relates to the technical field of power plant monitoring, in particular to intelligent safety monitoring equipment for power plant coal conveying, which comprises a coal mine conveying belt, and a second monitoring component for monitoring coal conveying is arranged at the side end of the outer wall of the coal mine conveying belt. First monitoring parts for monitoring are also arranged at the side end of the outer wall of the coal mine conveying belt and located on the two sides of the second monitoring part, the second monitoring part comprises a detection room, and mounting beams are fixed to the upper portions of the front end and the rear end of the inner wall of the detection room. Through the monitoring camera and the infrared temperature detector, the temperature and pictures of coal conveyed by the coal mine conveying belt can be detected, and meanwhile, smoke dust of the conveyed coal can be sucked through the smoke suction port and conveyed into the detection channel to be subjected to component analysis through the detection sensor; therefore, whether spontaneous combustion occurs or the risk of spontaneous combustion occurs in the coal can be judged in time, and damage to the coal in the conveying process can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power plant monitoring, and particularly relates to an intelligent safety monitoring device for coal transportation in a power plant. Background Art

[0002] Coal transportation in a power plant is the process of transporting coal from storage points (such as coal piles, coal bunkers) to boilers or combustion systems during the power generation process. This process is crucial for the effective utilization of coal fuel, reducing operations, and improving the overall efficiency of the power plant.

[0003] During the process of coal transportation in a power plant, since coal is a combustible substance, during transportation, due to some storage factors or other circumstances, coal spontaneous combustion may occur. In the existing coal transportation system, it often only uses high-definition cameras for visual detection, and personnel remotely monitor the coal through the images. As a result, when coal spontaneous combustion occurs at the bottom position during transportation, it is often very difficult for personnel to view it in a timely manner. At the same time, some coal may be mixed with some toxic gases during transportation, and personnel often do not monitor these gases in a timely manner. Therefore, there are certain deficiencies in the existing safety monitoring of coal transportation in power plants.

[0004] In summary, it is very necessary to invent an intelligent safety monitoring device for coal transportation in a power plant. Summary of the Invention

[0005] Therefore, the present invention provides an intelligent safety monitoring device for coal transportation in a power plant to solve the problems that personnel remotely monitor the coal through the images, resulting in it being often very difficult for personnel to view in a timely manner when coal spontaneous combustion occurs at the bottom position during transportation, and at the same time, some coal may be mixed with some toxic gases during transportation, and personnel often do not monitor these gases in a timely manner.

[0006] To achieve the above object, the present invention provides the following technical solution: An intelligent safety monitoring device for coal transportation in a power plant, including a coal mine conveyor belt, a second monitoring component for monitoring coal transportation is arranged on the outer wall side end of the coal mine conveyor belt, and first monitoring components for monitoring are also arranged on both sides of the outer wall side end of the coal mine conveyor belt and located on both sides of the second monitoring component;

[0007] The second monitoring component includes a detection room, mounting beams are fixed above the front and rear ends of the inner wall of the detection room, a detection channel and a filter box for detecting coal dust are arranged at the top end of the outer wall of the mounting beam, and smoking ports are fixed on both the front and rear sides of the inner wall of the detection room and below the mounting beam.

[0008] Preferably, the top ends of the inner walls of the smoking ports are fixedly and communicatively connected with smoke pipes, the upper ends of the smoke pipes are fixedly and communicatively connected with the right side of the inner wall of the detection channel, and detection sensors for detecting soot are installed on the upper and lower sides of the inner wall of the detection channel.

[0009] Preferably, the filter box is arranged on the left side of the outer wall of the detection channel. Composite filter plates for multi-stage filtering of soot are installed on the inner walls of the filter box. The detection channel and the filter box are communicatively connected through a communication pipe. A smoking fan is fixed at the corresponding position on the rear side of the outer wall of the detection room and corresponding to the filter box. The air suction end of the smoking fan is communicatively connected with the left side of the inner wall of the filter box through a suction pipe.

[0010] Preferably, a control box for control is fixed on the front side of the top end of the outer wall of the detection room, and a water storage tank is fixed at the rear side of the top end of the outer wall of the detection room and located behind the control box. The top liquid inlet end of the water storage tank is fixedly and communicatively connected with a liquid supply pump for water replenishment.

[0011] Preferably, a hollow pipe is fixed to the left side of the bottom end of the inner wall of the installation beam. The bottom end of the inner wall of the hollow pipe is fixedly and communicatively connected with a spray pipe. A second monitoring camera is installed on the left side of the spray pipe at the bottom end of the outer wall of the installation beam, and a second infrared temperature detector is installed on the left side of the second monitoring camera.

[0012] Preferably, the first monitoring component includes a gantry, the gantry is installed outside the coal mine conveyor belt, a lifting cross beam is slidably connected to the inner wall of the gantry, and a first monitoring camera and a first infrared temperature detector for monitoring the coal transported on the coal mine conveyor belt are installed at the bottom end of the outer wall of the lifting cross beam.

[0013] Preferably, a plurality of the first monitoring cameras and the first infrared temperature detectors are alternately installed at the bottom end of the outer wall of the installation beam. Through grooves are formed at the front and rear ends of the outer wall of the gantry, and a threaded rod and a guide rod are respectively installed on the inner walls of the two through grooves.

[0014] Preferably, a threaded block is fixed to one end of the outer wall of the lifting cross beam close to the threaded rod, the threaded block is threadedly connected to the outer wall of the threaded rod, a guide block is fixed to one end of the outer wall of the lifting cross beam close to the guide rod, the guide block is slidably connected to the outer wall of the guide rod, and a driving motor for driving the threaded rod to rotate forward and backward is installed at the top end of the outer wall of the gantry.

[0015] The beneficial effects of the present invention are:

[0016] In the present invention, the monitoring camera and the infrared temperature detector are provided to detect the temperature and the picture of the coal conveyed by the coal mine conveyor belt. Meanwhile, the smoke and dust of the conveyed coal can be sucked through the smoke extraction port and conveyed into the detection channel for component analysis by the detection sensor, so as to judge in time whether the coal has spontaneous combustion or the risk of spontaneous combustion, thereby reducing the harm of the coal during the conveying process and making it more convenient for personnel to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure in the front view direction of the present invention;

[0018] Figure 2 It is a schematic diagram of the sectional structure in the side view direction of the first monitoring component in the present invention;

[0019] Figure 3 It is a schematic diagram of the sectional structure in the side view direction of the second monitoring component in the present invention;

[0020] Figure 4 It is a partial schematic diagram of the structure in the front view direction of the installation beam in the present invention;

[0021] Figure 5 It is a schematic diagram of the structure in the front view direction of the detection channel in the present invention;

[0022] Figure 6 For the present invention Figure 5 sectional structure schematic diagram.

[0023] In the figure: 100, coal mine conveyor belt; 200, first monitoring component; 210, gantry; 220, drive motor; 230, threaded rod; 240, lifting cross beam; 250, first monitoring camera; 260, first infrared temperature detector; 300, second monitoring component; 310, detection room; 320, control box; 330, installation beam; 340, smoke extraction port; 350, detection channel; 351, detection sensor; 360, filter box; 361, composite filter plate; 370, smoke extraction fan; 380, water storage tank; 381, spraying pipe; 390, second monitoring camera; 391, second infrared temperature detector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0025] Refer to the attached Figures 1-6, an intelligent safety monitoring device for coal transportation in a power plant provided by the present invention includes a coal mine conveyor belt 100. A second monitoring component 300 for monitoring coal transportation is provided on the outer wall side end of the coal mine conveyor belt 100. The second monitoring component 300 includes a detection room 310. Installation beams 330 are fixed above the front and rear ends of the inner wall of the detection room 310. The provided installation beams 330 play a role in supporting and installing. A detection channel 350 and a filter box 360 for detecting coal dust and soot are provided at the top end of the outer wall of the installation beam 330. Smoking ports 340 are fixed on the front and rear sides of the inner wall of the detection room 310 and below the installation beam 330. Smoke pipes are fixedly connected to the top ends of the inner walls of the smoking ports 340. The upper ends of the smoke pipes are fixedly connected to the right side of the inner wall of the detection channel 350. The coal flue gas in the detection room 310 can be sucked through the smoking ports 340 and enter the detection channel 350 through the smoke pipes. Detection sensors 351 for detecting soot are installed on the upper and lower sides of the inner wall of the detection channel 350. The provided detection sensors 351 can detect whether there is flue gas and harmful gases generated by combustion in the coal dust. For flue gas and harmful gases, corresponding detection sensors can be selected, such as MQ-7 type carbon monoxide sensor, MICS-5524 type sulfur dioxide (SO2) sensor, NOx-35 type nitrogen oxide (NO x ) sensor, MG-811 type carbon dioxide (CO2) sensor, DSM501A type dust sensor, etc. Specifically, it can be specifically selected by personnel. Each sensor can be connected to the control box 320 through a data cable, so that the control box 320 can receive the values detected by each sensor;

[0026] The filter box 360 is arranged on the left side of the outer wall of the detection channel 350. Composite filter plates 361 for multi-stage filtering of soot are installed on the inner walls of the filter box 360. The composite filter plates 361 can be composed of a particulate capture net, an activated carbon filter plate, a high-efficiency air filter, and a chemical adsorption layer, which can efficiently filter the passing soot. The detection channel 350 and the filter box 360 are both fixed with sealing plates by bolts to facilitate personnel to clean and replace the detection sensor 351 and the composite filter plates 361. The detection channel 350 and the filter box 360 are connected through a communication pipe. A smoking fan 370 is fixed at the corresponding position on the rear side of the outer wall of the detection room 310 and corresponding to the filter box 360. The air extraction end of the smoking fan 370 is connected to the left side of the inner wall of the filter box 360 through an air extraction pipe. The smoking fan 370 is provided to discharge the filtered air. A control box 320 for control is fixed on the front side of the top of the outer wall of the detection room 310. A water storage tank 380 is fixed on the top of the outer wall of the detection room 310 and behind the control box 320. The top liquid inlet end of the water storage tank 380 is fixedly connected to a liquid supplement pump for water replenishment. A hollow pipe is fixed at the left bottom of the inner wall of the installation beam 330. The bottom of the inner wall of the hollow pipe is fixedly connected to a spray pipe 381. When the coal pile being detected may be prone to spontaneous combustion, water can be conveyed into the hollow pipe through the water storage tank 380 and a water pipe, so that the water is sprayed on the coal through the spray pipe 381, thereby increasing the humidity of the coal, which can play a role in flame retardancy and also reduce the occurrence of its spontaneous combustion. A second monitoring camera 390 is installed on the left side of the bottom of the outer wall of the installation beam 330 and on the left side of the spray pipe 381. A second infrared temperature detector 391 is installed on the left side of the second monitoring camera 390. The second monitoring camera 390 and the second infrared temperature detector 391 can monitor the coal pile conveyed into the detection room 310 through visual and infrared monitoring methods, enabling personnel to obtain the situation of the coal in real time. Together with the soot detection, it can timely obtain whether the coal has spontaneous combustion;

[0027] On the outer wall side end of the coal mine conveyor belt 100 and on both sides of the second monitoring component 300, there are also first monitoring components 200 for monitoring. The first monitoring component 200 includes a gantry 210. The gantry 210 is installed on the outside of the coal mine conveyor belt 100. A lifting crossbeam 240 is slidably connected to the inner wall of the gantry 210. At the bottom end of the outer wall of the lifting crossbeam 240, there are installed a first monitoring camera 250 and a first infrared temperature detector 260 for monitoring the coal conveyed on the coal mine conveyor belt 100. The first monitoring camera 250 can collect on-site image information in real time, which is used to monitor the equipment operation status, personnel operation behavior, and material conveying situation, etc. The first infrared temperature detector 260 generates images by detecting the thermal radiation emitted by objects, which can be used to detect abnormal equipment heating, spontaneous combustion of coal piles, etc., and can work normally at night or under bad weather conditions. The first monitoring camera 250 can select the KBA18(AI2) intrinsically safe type image processing camera for mines, and the model of the first infrared temperature detector 260 can be recommended as the DS-ES2 Style Gewuyouxin dual-light explosion-proof thermal imager. Multiple first monitoring cameras 250 and first infrared temperature detectors 260 are alternately installed at the bottom end of the outer wall of the installation beam 330. Through grooves are opened at the front and rear ends of the outer wall of the gantry 210. A threaded rod 230 and a guide rod are respectively installed on the inner walls of the two through grooves. A threaded block is fixed at one end of the outer wall of the lifting crossbeam 240 close to the threaded rod 230. The threaded block is threadedly connected to the outer wall of the threaded rod 230. A guide block is fixed at one end of the outer wall of the lifting crossbeam 240 close to the guide rod. The guide block is slidably connected to the outer wall of the guide rod. A driving motor 220 for driving the threaded rod 230 to rotate forward and backward is installed at the top end of the outer wall of the gantry 210. Personnel can control the rotation of the threaded rod 230 through the driving motor 220, so that the threaded rod 230 can control the lifting crossbeam 240 to move up and down, thereby adjusting the height positions of the first monitoring camera 250 and the first infrared temperature detector 260, so that the first monitoring camera 250 and the first infrared temperature detector 260 can accurately monitor the passing coal.

[0028] The usage process of the present invention is as follows: Those skilled in the art can first assemble the device according to the above description, then supply external power to all electrical equipment, and control the operation of the first monitoring camera 250 and the first infrared temperature detector 260 through an external controller. After completion, personnel can transfer coal from the coal bunker to the coal mine conveyor belt 100 through the device. The provided coal mine conveyor belt 100 can transfer coal to the power generation equipment through the belt. During the transfer process, the coal will pass under the gantry 210 and the detection room 310 in sequence. When passing under the gantry 210, the provided first monitoring camera 250 and the first infrared temperature detector 260 can monitor the conveying picture and temperature of the coal to avoid the situation of over-high temperature. The coal will also be conveyed into the detection room 310. During the conveying process, the control box 320 can control the smoke extraction fan 370 to extract air, so that the smoke extraction port 340 can suck the smoke and dust of the passing coal and convey it into the detection channel 350. The provided detection channel 350 can analyze the smoke and dust content through the detection sensor 351, and then send the data to the control box 320. The provided control box 320 can send the information data to the PC of the management personnel for viewing. The analyzed smoke and dust will enter the first infrared temperature detector 260, and the provided 261 can filter the smoke and dust multiple times, and the filtered air can be discharged;

[0029] The provided second monitoring camera 390 and the second infrared temperature detector 391 can further conduct secondary monitoring on the coal. When the control box 320 analyzes that the carbon dioxide content in the smoke and dust data exceeds the standard and the temperature of the second infrared temperature detector 391 is too high, the provided water storage tank 380 can convey the water inside to the hollow pipe, so that the spraying pipe 381 can spray water to extinguish the fire or humidify and retard the combustion of the coal, and report to the management personnel in time for viewing.

Claims

1. An intelligent safety monitoring device for coal transportation in a power plant, characterized in that: It includes a coal mine conveyor belt (100), and a second monitoring component (300) for monitoring coal transportation is provided at the outer wall side end of the coal mine conveyor belt (100). First monitoring components (200) for monitoring are also provided at both sides of the outer wall side end of the coal mine conveyor belt (100) and located on both sides of the second monitoring component (300). The second monitoring component (300) includes a detection room (310). Installation beams (330) are fixed above the front and rear ends of the inner wall of the detection room (310). A detection channel (350) and a filter box (360) for detecting coal dust and soot are provided at the outer wall top end of the installation beam (330). Smoking ports (340) are fixed on the front and rear sides of the inner wall of the detection room (310) and located below the installation beam (330).

2. The intelligent safety monitoring device for coal conveying in a power plant according to claim 1, wherein: Smoke pipes are fixedly connected to the top ends of the inner walls of the smoking ports (340). The upper ends of the smoke pipes are fixedly connected to the right side of the inner wall of the detection channel (350). Detection sensors (351) for detecting soot and dust are installed on both the upper and lower sides of the inner wall of the detection channel (350).

3. The intelligent safety monitoring device for coal transportation in a power plant according to claim 2, characterized in that: The filter box (360) is arranged on the left side of the outer wall of the detection channel (350). Composite filter plates (361) for multi-stage filtering of soot and dust are installed on the inner walls of the filter box (360). The detection channel (350) and the filter box (360) are connected through a communication pipe. A smoking fan (370) is fixed at the corresponding position on the rear side of the outer wall of the detection room (310) and corresponding to the filter box (360). The air extraction end of the smoking fan (370) is connected to the left side of the inner wall of the filter box (360) through an air extraction pipe.

4. The intelligent safety monitoring device for coal transportation in a power plant according to claim 3, characterized in that: A control box (320) for control is fixed on the front side of the outer wall top end of the detection room (310). A water storage tank (380) is fixed on the outer wall top end of the detection room (310) and located behind the control box (320). A liquid supply pump for water replenishment is fixedly connected to the top liquid inlet end of the water storage tank (380).

5. The intelligent safety monitoring device for coal transportation in a power plant according to claim 4, wherein: A hollow pipe is fixed to the left bottom end of the inner wall of the installation beam (330). A spraying pipe (381) is fixedly connected to the bottom end of the inner wall of the hollow pipe. A second monitoring camera (390) is installed on the left side of the bottom end of the outer wall of the installation beam (330) and located on the left side of the spraying pipe (381). A second infrared temperature detector (391) is installed on the left side of the second monitoring camera (390).

6. An intelligent safety monitoring device for coal transportation in a power plant according to claim 1, characterized in that: The first monitoring component (200) includes a gantry (210). The gantry (210) is installed outside the coal mine conveyor belt (100). A lifting cross beam (240) is slidably connected to the inner wall of the gantry (210). A first monitoring camera (250) and a first infrared temperature detector (260) for monitoring the coal transported on the coal mine conveyor belt (100) are installed at the bottom end of the outer wall of the lifting cross beam (240).

7. An intelligent safety monitoring device for coal transportation in a power plant according to claim 6, characterized in that: Multiple first monitoring cameras (250) and first infrared temperature detectors (260) are alternately installed at the bottom end of the outer wall of the installation beam (330). Through slots are provided at both the front and rear ends of the outer wall of the gantry (210). Threaded rods (230) and guide rods are respectively installed on the inner walls of the two through slots.

8. An intelligent safety monitoring device for coal transportation in a power plant according to claim 7, characterized in that: A thread block is fixed to the outer wall of the lifting cross beam (240) and near one end of the threaded rod (230). The thread block is threadedly connected to the outer wall of the threaded rod (230). A guide block is fixed to the outer wall of the lifting cross beam (240) and near one end of the guide rod. The guide block is slidably connected to the outer wall of the guide rod. A driving motor (220) for driving the threaded rod (230) to rotate forward and backward is installed at the top end of the outer wall of the gantry (210).

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