CN115857402A - Intelligent control system for coal conveying of coal mine - Google Patents
Intelligent control system for coal conveying of coal mine Download PDFInfo
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Abstract
The invention discloses an intelligent control system for coal mine coal conveying, which comprises a main control system and a front-end detection system; the front-end detection system comprises a load distribution monitoring unit, a personnel safety monitoring unit, an environmental safety monitoring unit and an equipment safety monitoring unit; the load distribution monitoring unit, the personnel safety monitoring unit, the environment safety monitoring unit and the equipment safety monitoring unit are respectively in data interaction with the main control system to monitor and control the coal quantity, the personnel safety, the environment safety and the equipment safety of the conveying belt; this scheme is through introducing intelligent control, carries out comprehensive monitoring and control to the coal conveyor, does not need artificial intervention, can realize the intelligent control of colliery defeated coal, and then improves the efficiency of colliery defeated coal.
Description
Technical Field
The invention relates to the technical field of intelligent control, in particular to an intelligent control system for coal conveying of a coal mine.
Background
The belt conveyor is an important device for coal production, so that the intelligent control of the belt conveyor is realized by means of technological progress of high and new technologies, and the development direction of the current belt conveyor technology is provided. The guide opinions about accelerating the intelligent development of the coal mine, which are jointly formulated by eight ministerial committees such as national committee for development and modification in 2 months in 2020, are specifically proposed: the intelligent transformation of the conditioned production coal mine is accelerated, and intelligent optimization and promotion are performed in production operation management links such as main and auxiliary transportation, so that the intelligent transformation and upgrading of the traditional coal mine are realized; the method synchronously promotes the development of network safety and coal mine intelligence, and accelerates the popularization and application of modern information technologies such as industrial internet and vehicle networking, a new-generation communication technology, cloud computing, big data, artificial intelligence, virtual reality and the like in the field of coal industry.
However, the development of the intelligent control technology of the existing belt conveyor is relatively lagged, and manual interference is needed in the coal conveying process, so that the coal conveying efficiency of a coal mine is greatly reduced.
Therefore, the problem to be solved in the field is how to improve the coal mine coal conveying efficiency by improving the intellectualization of the coal mine control system.
Disclosure of Invention
Aiming at the technical problem of low coal conveying efficiency of the existing coal mine, the invention aims to provide an intelligent control system for coal conveying of the coal mine, which can realize intelligent control of coal conveying of the coal mine, further improve the coal conveying efficiency of the coal mine and well overcome the problems in the prior art.
In order to achieve the aim, the coal mine coal conveying intelligent control system provided by the invention comprises a main control system and a front end detection system; the front-end detection system comprises a load distribution monitoring unit, a personnel safety monitoring unit, an environmental safety monitoring unit and an equipment safety monitoring unit; the load distribution monitoring unit, the personnel safety monitoring unit, the environment safety monitoring unit and the equipment safety monitoring unit are respectively in data interaction with the main control system, and monitoring and control of coal quantity, personnel safety, environment safety and equipment safety are carried out on the conveying belt.
Further, the personnel safety monitoring unit comprises a plurality of personnel safety acquisition modules and an alarm module; the personnel safety acquisition modules are distributed and installed at the underground critical part, monitor the real-time condition in the well and transmit the monitored data to the main control system; the main control system is connected with an alarm module in a driving way;
the main control system analyzes and processes real-time data in the well collected by the personnel safety collecting module, and if an abnormal condition in the well is identified, the alarm packet block is triggered to alarm.
Furthermore, the environment safety monitoring unit comprises a plurality of temperature measuring modules and an alarm module; the temperature measurement modules are distributed in the well, detect the temperature in the well in real time and respectively transmit the data of the real-time detection to the main control system; the main control system is connected with an alarm module in a driving way;
the main control system analyzes and processes the data pair detected by the temperature measurement module, and drives the alarm module to give an alarm if the temperature in the well is abnormal.
Furthermore, the environment safety monitoring unit is provided with an overtemperature watering module based on thermal imaging in a matched manner, and the overtemperature watering module is arranged in the well and is connected with the main control system in a matched manner;
the overtemperature sprinkling module comprises an acquisition submodule, an identification submodule, a judgment submodule, an alarm submodule and a sprinkling module; the collection submodule is installed at a proper point position of a driving position of the belt conveyor and is connected with the identification submodule, a thermal imaging graph of a belt conveyor roller monitored in real time and an ambient temperature thermal imaging graph are transmitted to the identification submodule to be subjected to image processing, identified data are compared with a temperature threshold value, if the temperature is higher than a set threshold value, an alarm module is triggered to alarm, and meanwhile, a sprinkling module arranged in a well is driven to sprinkle water, extinguish fire and cool.
Furthermore, the load distribution monitoring unit comprises a plurality of load distribution acquisition modules; the load distribution acquisition modules are arranged on the belt conveyor and interact with the main control system in data mode, monitored data are transmitted to the main control system through the load distribution acquisition modules, and the main control system controls the transportation system to automatically adjust speed and tension and start and stop time according to coal conveying quantity according to load conditions of all devices on a detected conveying link.
Further, the equipment safety monitoring unit comprises a foreign matter monitoring module and a longitudinal tearing monitoring module, and is respectively in data interaction with the main control system.
Further, the foreign matter monitoring module comprises a foreign matter detection submodule and a material accumulation detection submodule;
the foreign matter detection module comprises a collection device and an alarm device; the collecting device is arranged above the coal bunker opening, monitors the conveying belt in real time, and transmits the monitored data to the main control system; if foreign matters suddenly appear and stay for more than a set time in the production process, the main control system sends out the foreign matters to trigger an alarm device;
the material accumulation detection submodule comprises a detection device and an alarm device; the detection device is arranged in the monitoring area to monitor the conveying belt in the monitoring area and transmit the monitored data to the main control system; the main control system is connected with the alarm device and the conveying belt device in a driving way; if the belt conveyor is suddenly stopped or a large material blocks the bin opening, the coal flow at the discharging bin opening exceeds the set height and time, and the main control system triggers the alarm device and drives the conveyor belt to stop.
Further, the longitudinal tearing monitoring module comprises an image data acquisition module, an image data transmission module and an image processing module;
the image acquisition part is used for acquiring the running image samples of the conveying belt and transmitting the running image samples to the image processing module through the image data transmission module, and the image processing module analyzes, processes and judges the transmitted data samples, calculates the tearing state of the conveying belt and feeds the processing result back to the main control system for stopping the running of the conveying belt.
Furthermore, the coal mine coal conveying intelligent control system also comprises a coal bunker management unit; the coal bunker management unit is in data interaction with the main control system; the coal bunker management unit comprises a coal level sensor, the coal level sensor monitors the coal level of the coal bunker in real time and transmits monitored data to the main control system, and when the coal level of the coal bunker is lower than a threshold value set by the main control system, the main control system drives the coal feeder controller to stop the coal discharge of the coal feeder.
Furthermore, the coal bunker management unit is also provided with a monitoring module and an alarm module in a matching way; the monitoring module is installed in main shaft belt conveyor tail department and monitors the run storehouse accident of tail and gives main control system with monitoring data transmission, if monitoring ground water level lifting to the change is rapid, then main control system drive alarm device reports to the police.
The intelligent control system for coal mine coal conveying provided by the scheme comprehensively monitors and controls a coal conveyor by introducing intelligent control, does not need human intervention, can realize intelligent control of coal mine coal conveying, and further improves the efficiency of coal mine coal conveying.
Drawings
The invention is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is a frame diagram of the overall structure of the coal mine coal conveying intelligent control system;
FIG. 2 is a schematic diagram of the detection of the coal quantity in the coal mine coal conveying intelligent control system;
FIG. 3 is a schematic structural diagram of a personnel safety monitoring unit in the coal mine coal transportation intelligent control system;
FIG. 4 is a schematic diagram of the distribution of the optical fiber temperature measurement system in the coal mine coal transportation intelligent control system;
FIG. 5 is a structural diagram of an over-temperature watering module in the coal mine coal transportation intelligent control system;
FIG. 6 is a schematic structural view of a longitudinal tearing monitoring unit in the coal mine coal transportation intelligent control system;
FIG. 7 is a structural topological diagram of a centralized control unit in the coal mine coal transportation intelligent control system;
fig. 8 is a structural topological diagram of a broadcasting unit in the coal mine coal conveying intelligent control system;
fig. 9 is a schematic structural diagram of a cloud platform in the coal mine coal transportation intelligent control system.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
The intelligent coal conveying control system takes a gate belt conveyor, a roadway belt conveyor, a main shaft belt conveyor, a bunker-loading belt conveyor, a bunker-allocation belt conveyor, a raw coal bunker, a coal feeder along the line, a crusher, an iron remover, a chute and other equipment as monitoring objects, and realizes safe, efficient, reliable and unmanned operation of a main conveying system through technologies such as sensing protection, bus transmission, a programmable logic controller, cooperative control, AI video analysis, fault diagnosis, variable frequency driving and the like, wherein the system architecture is shown in figure 1:
the system mainly realizes the functions of three aspects, namely, the front end edge calculation and the analysis on a software algorithm are realized, and the accurate perception of the material information, the equipment state, the personnel condition and the operating environment of the coal flow transportation system is realized. And secondly, safe linkage of systems such as environment parameters, personnel conditions, equipment power supply states, video monitoring and the like of the main transportation area is realized. And thirdly, efficient energy-saving equipment and control strategies such as permanent magnetic direct drive, intelligent speed regulation, cooperative control and the like are adopted, so that the user maintenance amount is reduced, the transmission efficiency is improved, and efficient operation control is realized.
Referring to fig. 1, the coal mine coal conveying intelligent control system provided by the invention comprises a front-end monitoring system 100, a main control system 200 and a cloud platform 300.
Further, the front-end monitoring system 100 includes a load distribution monitoring unit 110, a personnel safety monitoring unit 120, an environmental safety monitoring unit 130, and an equipment safety monitoring unit 140.
In the actual use of the belt conveyor, because factors such as the opening degree of a coal feeder, the walking progress of a coal mining machine, the speed of the conveyor and the like can cause the material change on the conveyor, the material accumulation can occur at the local part of the conveyor, the belt can be pressed or the material can be scattered under the serious condition, the potential safety hazard exists in the operation process of the conveyor, and the safety operation of equipment is not facilitated. In addition, the capacity of the coal handling system varies over time, and if the conveyor is still running at the speed at which the maximum capacity is available, it results in wasted capacity and energy.
Therefore, the load distribution monitoring unit 110 of the scheme comprises a plurality of load distribution acquisition modules and is arranged on the belt conveyor for pre-detecting the coal amount on the conveying belt and ensuring the normal operation of the materials on the conveying belt.
The load distribution detection and prediction is the basis of the coal mine coal conveying intelligent control system, a belt conveyor load distribution module is established by establishing a mathematical model for belt conveyor load distribution detection according to the characteristics of coal quantity detection data, and transparent monitoring of belt conveyor load distribution is realized by combining parameters such as belt speed and design transportation quantity of a belt conveyor.
Meanwhile, the load distribution monitoring unit 110 interacts with the main control system 200, referring to fig. 2, the monitored data are transmitted to the main control system 200 through the load distribution monitoring unit 110, and the main control system 200 controls the transportation system to automatically adjust the speed and the tension according to the coal conveying amount and start and stop the train time according to the detected load condition of each device on the conveying link, so that the problem of basic data of front and back intelligent linkage of the conveying system is solved.
In some examples, the load distribution acquisition module can adopt an intelligent analysis mining explosion-proof analysis camera, the intelligent analysis mining explosion-proof analysis camera is installed on the conveyor, the coal quantity on the conveyor is monitored, the load distribution of the coal conveying system is monitored, and basic data are provided for subsequent safe and efficient control.
Referring to fig. 3, the personnel safety monitoring unit 120 is installed at each belt conveyor head and other suitable positions and is cooperatively connected with the main control system to prevent casualty accidents during the operation of the belt conveyor.
The personnel safety monitoring unit 120 includes several personnel safety acquisition modules and an alarm module.
The personnel safety acquisition modules are distributed and installed at the underground critical part, monitor the real-time condition in the well and transmit the monitored data to the main control system 200; the main control system 200 is connected with an alarm module in a driving way.
The main control system 200 analyzes and processes real-time data in the well collected by the personnel safety collection module, and if an abnormal condition in the well is identified, the alarm packet is triggered to give an alarm so that the personnel can be rescued in time and the life safety of the personnel is ensured.
In some examples, the personnel safety acquisition module can adopt a camera, and the comprehensive video intelligent monitoring system is based on real-time video data of a coal mine field camera, takes an AI intelligent identification technology as a core and takes a machine deep learning mathematical model and an alarm output unit as supports.
The AI technology is provided with various deep learning algorithms, various events are continuously and accurately detected, and the abnormal events are found and uploaded to the center in time, so that dispatchers and production commanders can more intuitively and accurately master the actual conditions of various main production links.
Meanwhile, the whole process of the occurred event is subjected to video backup, important data is recorded, and a real basis is provided for accident handling. Through multi-dimensional and multi-angle video identification, analysis and statistics, hidden dangers are timely discovered and related personnel are reminded, the coal mine safety production system is guaranteed to be implemented, various problems and accidents occurring in production are effectively commanded, processed and solved, and therefore necessary conditions are provided for unattended operation of coal mines.
The environmental safety monitoring unit 130 is disposed in the well and connected to the main control system 200 for monitoring the temperature in the well in real time.
The environmental security monitoring unit 130 includes a plurality of temperature measurement modules and an alarm module.
The temperature measurement modules are distributed in the well, detect the temperature in the well in real time and respectively transmit the data detected in real time to the main control system 200; the main control system 200 is connected with an alarm module in a driving way.
The main control system 200 analyzes and processes the data detected by the temperature measuring module, and if the temperature in the well is abnormal, the alarm module is driven to give an alarm, so that the later-stage personnel can conveniently check and maintain.
In some examples, the temperature measurement module adopts a distributed optical fiber temperature measurement host, and the mining intrinsic safety type distributed optical fiber temperature measurement host demodulates temperature information measured by a temperature sensing optical cable on the conveyor and transmits the data to an aboveground monitoring center through an industrial looped network.
The distributed optical fiber temperature measurement host machine has the characteristics of high response speed and smashing resistance and tensile strength by utilizing the temperature sensing optical cable, and can accurately position to a meter level, as shown in fig. 4:
the main interface needs to be displayed by adopting software of a structural model, and can display a whole-course partition diagram and a temperature distribution curve thereof; the system monitoring curve and system parameters can be displayed; the time-varying curve of the temperature of the key monitoring point can be displayed; the length of a measuring area can be divided into at least 128 areas, and local key monitoring and area alarm are carried out on certain areas; the alarm device has the alarm functions of constant temperature alarm, differential temperature alarm (the difference between the real-time temperature and the average temperature is overlarge and is used for distinguishing local hot spots), over-quick temperature rise alarm, optical fiber damage alarm, device abnormity and the like; the mobile phone short message alarm is divided into a working level and a management level, and is sent to working layer personnel and management layer personnel according to the importance level of an event.
In addition, the environmental safety monitoring unit 130 is cooperatively provided with an over-temperature watering module based on thermal imaging, and the over-temperature watering module is arranged in the well, is cooperatively connected with the main control system and is used for cooling the well; the overtemperature sprinkling module comprises an acquisition submodule, an identification submodule, a judgment submodule, an alarm submodule and a sprinkling module.
The collection submodule is installed at a proper point position of a driving position of a belt conveyor and is connected with a main control system, an identification submodule in the main control system transmits a thermal imaging image and an ambient temperature thermal imaging image of a belt conveyor roller monitored in real time to the identification submodule for image processing, simultaneously compares identified data with a temperature threshold value, if the temperature is higher than a set threshold value, triggers an alarm module to alarm, and simultaneously drives a sprinkling module arranged in a well to sprinkle water, extinguish fire and cool.
In some examples, the overtemperature sprinkling module adopts an intelligent machine vision analysis technology, a mining explosion-proof infrared thermal imaging camera is installed at a proper point position of a driving part of the belt conveyor, a thermal imaging graph of a roller of the belt conveyor and an ambient temperature thermal imaging graph are monitored in real time, a threshold value of the monitored temperature is preset through a platform, and an alarm and shutdown rule is set.
As shown in fig. 5, in the production process, once the system monitors that the temperature is higher than the set value and the area reaches the set pixel point, the platform sends out a voice alarm signal to remind an operator on duty, and meanwhile, the intelligent analysis equipment sends out a current signal which is transmitted to the field mining explosion-proof and intrinsically safe programmable control box through the multifunctional optical transmitter and receiver to generate an alarm shutdown signal, so that the safety production accident caused by the gradual rise of the fault temperature of the roller is avoided.
The mining intrinsic safety type thermal imager can be cascaded in a plurality of ways under the condition that the bandwidth is met. The thermal imager is connected to the ring network switch through an optical port or an electric port nearby. Ambient temperature changes are monitored and the highest, lowest and average temperature changes in the environment are recorded, in the event of rapid temperature changes in the environment, for example: and (4) giving an alarm signal when the temperature of the tunnel rises abnormally, prompting the temperature abnormality in the tunnel, and performing linkage treatment. By the monitoring system, the state of the key equipment is controlled in real time, intelligent operation and maintenance are achieved, and the utilization rate of the equipment and the production stability are improved.
The device safety monitoring unit 140 includes a foreign object monitoring module and a longitudinal tear monitoring module.
The foreign matter monitoring module comprises a foreign matter detection submodule and a material accumulation detection submodule.
The foreign body detection submodule comprises a collecting device and an alarming device; the acquisition device is arranged above the coal bunker opening, monitors the conveying belt in real time, and transmits the monitored data to the main control system.
If foreign matters suddenly appear in the production process and stay for more than the set time, the main control system sends out the foreign matters and triggers the alarm device so that the attendant can timely handle the foreign matters.
In some examples, the acquisition device adopts a mining explosion-proof camera, the specific selection is not limited,
the material accumulation detection submodule comprises a detection device and an alarm device; the detection device is arranged in the monitoring area to monitor the conveying belt in the monitoring area and transmit the monitored data to the main control system; main control system drive connection alarm device and conveyer belt device
Setting alarm and shutdown rules through a monitoring area marked by platform software in intelligent analysis equipment, when a belt conveyor below a conveyor unit is suddenly stopped and a belt conveyor above the conveyor unit continues to produce or a large block of material blocks a bin opening in the production process, and the coal flow of a discharging bin opening exceeds a set height and time, sending out a voice alarm by a main control system to remind an operator on duty, simultaneously outputting an alarm shutdown signal, and simultaneously generating an acousto-optic alarm to remind an inspector to process in time,
at present, a conveying belt is widely applied to various large coal mines, in the operation process of equipment, the conveying belt is in long-term and high-load complex environment operation, in order to adapt to special underground site conditions and ensure the reliability of transportation, generally, a multi-belt conveyor is transferred to realize the whole transportation process, the belt conveyor is usually longitudinally torn at each transfer point due to the large foreign matter clamping stagnation and the like, once a tearing accident occurs, the normal production is influenced, and long-time production halt and great economic loss are caused.
The longitudinal tearing monitoring module adopts the working principle that a special light-sensitive camera is used for shooting and imaging the surface of the belt conveyor. The structured light beam forms a contour line which completely conforms to the surface of the belt conveyor. And judging the contour line change in the shot image by using an image real-time algorithm.
The longitudinal tearing monitoring module comprises an image data acquisition module, an image data transmission module and an image processing module.
The industrial camera collects the conveying belt running image sample sheet with the laser lines inside in real time and transmits the sample sheet data to the image processing module through the image data transmission module.
The image processing module analyzes, processes and judges the transmitted data sample so as to calculate the state of whether the conveying belt is torn or not. And finally, feeding back the processing result to a control system for stopping the operation of the conveying belt.
Referring to fig. 6, the laser linear light projection irradiates the lower surface of the forward conveying belt, the uniformity of the laser stripes irradiated on the surface of the conveying belt changes according to the change of depth information due to the unevenness of the surface of the conveying belt, and the collected image appears to be distorted along with the change of depth, and the degree of the distortion is determined by the relative distance between the tearing collection device and the conveying belt and is related to the flatness of the surface of the conveying belt.
When the laser line in the collected image is in a uniform and flat state, the conveyor belt is determined to be in a state that the conveyor belt does not longitudinally tear during normal operation; when the laser line is in a step or fracture state, the state that the conveyor belt is longitudinally torn is judged. And extracting the state and characteristic information of the laser line, and analyzing the state and characteristic information by using a computer image algorithm so as to calculate and judge the running condition of the conveying belt and classify the conveying belt.
The main control system 200 includes a centralized control unit, a speed regulation unit, a bunker management unit and a broadcast unit.
The centralized control unit comprises a centralized control submodule, a transmission submodule and a field device control submodule.
Furthermore, the centralized control sub-module is used for realizing data transmission and data processing, and the PLC is used as a control core, and the host computer is added to form a control system, so that an automatic control function is realized, communication and contact among the master control PLC, the man-machine interface system and the field equipment are realized, and the centralized control of the belt conveyor is completed.
The control PLC is a high-performance programmable controller and is connected into the comprehensive automatic control system of the mine through an Ethernet optical fiber.
The centralized control submodule is composed of a monitoring server, a control cabinet, an Ethernet switch, a printer, a UPS power supply and the like, and is shown in FIG. 7.
A server version operating system and configuration software are arranged in the ground upper computer, and functions of data acquisition, dynamic graph display, historical data acquisition management, state trend graph, self diagnosis, alarm and the like are realized; and various data interfaces (ODBC, OPC and DDE) are provided to realize the sharing and the propagation of data.
Here, the monitoring software and the programming software are both unified operating systems (engineer station or operator station) of the current mature application and mainstream standard version (on the server), and the specific principle is not described in detail here.
The transmission submodule provides a transmission medium for data transmission, industrial Ethernet communication is adopted, existing ring network equipment is adopted, underground centralized control equipment is connected into an Ethernet switch in an acquisition mode, and each belt conveyor centralized control equipment provides an Ethernet interface.
For each layer of network, newly added network equipment provides ready-made communication driving software for interface configuration, real-time transparent network browsing, programming uploading/downloading, online diagnosis and the like. For each layer of network, newly added network equipment should provide ready-made configuration tool software for node address setting, parameter setting, equipment debugging, network system planning/optimization and the like. Provide rich diagnostic tools.
And the field device control submodule is used for realizing the control of the field device.
Specifically, the belt conveyor heads are respectively provided with an explosion-proof and intrinsic safety PLC control station and an operation console, so that the transmission of various signals such as a Huaning controller, a brake, tensioning, the speed of the belt conveyor, the power of a frequency converter, current and the like and the cooperative control of the belt conveyor are realized.
The field control station automatically adjusts the start and stop of the belt conveyor according to the material transportation condition of each rubber belt, and under the emergency condition, inspection personnel or remote monitoring personnel can perform emergency stop operation on the belt conveyor. And 2, 1 explosion-proof and intrinsic safety PLC control station 1 is respectively arranged at the coal feeder and used for remotely controlling the start-stop and speed regulation operations of the coal feeder.
Further, the speed regulating unit comprises a variable frequency speed regulating submodule of the belt conveyor and an online fault self-checking submodule.
The belt conveyor variable frequency speed regulation submodule acquires coal flow information on a belt conveyor by using a mining explosion-proof camera on the basis of an intelligent machine vision flow detection algorithm, and realizes variable frequency speed regulation of four high, medium, low and idle speeds of the conveyor according to the actual coal flow on the belt conveyor, thereby realizing the purpose of energy conservation of a coal mine main transportation system.
To ensure safe operation of the belt conveyor system, the system should have a self-checking function. When the PLC monitors that the video detection system has a fault, the online fault self-checking sub-module can automatically give a high-speed running signal to enable the belt conveyor to recover to a non-speed-regulation running state. The system can realize the functions of voice alarm and prompt on site to remind the patrol personnel, the voice alarm and prompt information are synchronously uploaded to the ground server and the ground client, the ground client simultaneously realizes the functions of voice alarm and prompt, and the position, the state and the like of the alarm fault are displayed.
In order to prevent the raw coal bunker from running, avoid the heavy load start-up and stop of the belt conveyor caused by full bunker, avoid the damage of the bottom of the coal bunker caused by emptying the bunker, stop the coal discharge before emptying the bunker, stop the coal discharge of the belt conveyor before full bunker, or timely act when the coal is run, close the plugboard, avoid the coal running accident, avoid the casualties, install the automatic control of the bunker position and the protection system of the coal running in the raw coal bunker.
The coal bunker management unit reduces the coal dropping height difference of the transfer point of the coal bunker by controlling the position of the coal bunker, reduces the falling collision crushing ratio and realizes the automatic position control and the running protection system.
The coal bunker management unit comprises a coal level sensor which monitors the coal level of the coal bunker in real time, when the coal level of the coal bunker is higher than a set value, the coal feeder controller controls the coal feeder to discharge coal, and when the coal level of the coal bunker is lower than a set threshold value, the coal feeder controller stops the coal discharge of the coal feeder. Meanwhile, the coal bunker running accident can be prevented, which is caused by that a large amount of water coal gushes out when the coal feeder is opened due to the fact that the water content of the coal in the coal bunker is too high, and the belt conveyor cannot convey the water coal quickly, so that the water coal overflows.
In addition, a coal bunker monitoring camera is installed at the tail of the main shaft belt conveyor, a coal bunker escaping accident occurs at the tail, water and coal overflow occurs, the monitoring camera simultaneously monitors the ground water level lifting, the change is rapid, the system automatically alarms, and the possibility of the coal bunker escaping accident is prompted.
As shown in fig. 8, the broadcasting unit is installed along the belt conveyor, and can realize that the belt conveyor talkbacks to the dispatch room along the line, and the broadcasting unit is composed of an industrial personal computer, a fusion talkback server, a voice talkback terminal and a microphone, a mining explosion-proof and intrinsically safe sound box and an intrinsically safe telephone.
The main devices of the broadcasting unit are intrinsic safety devices, and the broadcasting unit is suitable for being used in any underground environment; the talkback function along the belt conveyor and the centralized control center can be realized by combining a public address telephone.
For example, the ground centralized control room is provided with 1 industrial personal computer, KT502 mine dispatching communication system software and voice talkback terminals and microphones, and is used for realizing the voice talkback function along the aboveground belt conveyor and the underground belt conveyor.
And the signal transmission is carried out by means of the industrial ring network platform. The machine head, the machine tail and the coal feeder of each belt conveyor are respectively provided with 1 KXY127 mining flameproof and intrinsically safe sound box and a KTH116 intrinsically safe telephone, and a terminal is connected to a Huaning voice communication system to realize the function of uploading voice along the belt conveyor.
Each belt conveyor is provided with 1 set of KJS101-OH double-audio-frequency input and output and LCVB-7-1-5 steel wire woven rubber sheath connector, and after the belt conveyor is fused with a mining IP network broadcasting system, the intercommunication function of the belt conveyor along the line and a ground upper computer is realized.
The broadcasting unit can realize a real-time playing function, and an audio file needing to be played immediately is downloaded to the KXY127 mining flameproof and intrinsically safe sound box through a network to be played. A user can use a KTH116 intrinsic safety telephone hung on a mining explosion-proof and intrinsic safety type sound box along a KXY127 belt conveyor to talk with a dispatcher.
In addition, a user can select to speak with other terminal users or carry out overall sound amplification through a KTH116 intrinsic safety telephone which is hung on the KXY127 mining flameproof and intrinsic safety type sound box.
Meanwhile, the emergency broadcast function is provided, and a dispatcher can carry out emergency broadcast on single, subarea and all users through the broadcast host in any state.
No matter the KXY127 mining flameproof and intrinsically safe sound box is in the states of background music playing, speaking with other terminals, listening to the speaking of other terminals and the like, the dispatching speaking can be heard, and the dispatching priority is fully reflected.
The intelligent transportation and management platform of the coal mine coal conveying system takes a gate belt conveyor, a main roadway belt conveyor, a main shaft belt conveyor, an upper bin belt conveyor, a distribution bin belt conveyor, a raw coal bin, a coal feeder along the line, a crusher, an iron remover and a chute as monitoring objects, and ensures the coordinated, continuous, efficient and safe operation of all devices and the unattended operation by researching and applying a mining and transportation coordinated control technology, a fault diagnosis technology, a coal bin monitoring and management technology, a coal feeder coordinated control technology, a self-adaptive start-stop control technology and an intelligent speed regulation technology.
The cloud platform 300 can acquire, process, store and release data of all subsystems, and complete a function of centralized information management and control/network release. The components of the system are: the system comprises an IO/DA Server supporting connection of various hardware devices, a real-time data processing engine supporting a distributed platform, a real-time historical database and Web information portal software.
Referring to fig. 9, the cloud platform 300 includes a belt conveyor platform management unit: the unit mainly manages personnel, authority, equipment and data of a system platform. The method specifically comprises the steps of control authority management, operation log management, equipment information management, terminal management, data dictionary management and the like;
the cloud platform 300 further comprises a belt conveyor remote data monitoring unit: the unit is mainly used for monitoring and displaying the real-time data of the operation running state of electromechanical equipment of the belt conveyor system. Analyzing remote data information such as position information, running speed, motor current, voltage, temperature, smoke, deviation, coal piling, tearing, vibration and the like of the belt conveyor, and displaying state information of workers on a system platform in a digital and graph mode;
the cloud platform 300 further comprises a belt conveyor remote intelligent control unit: the unit is mainly used for intelligently controlling the operation of the underground belt conveyor transportation system based on the acquired big data information of the belt conveyor system through the remote monitoring platform. Such as intelligent deviation control of a belt conveyor, self-adaptive adjustment of coal piling, self-adjustment of vibration, intelligent coordination of a transportation system and the like. According to the actual operation requirements and production process requirements of the belt conveyor, intelligently optimizing a control algorithm and a control model, and realizing remote intelligent operation control of the belt conveyor system by a platform;
the cloud platform 300 further includes a belt conveyor state analysis and diagnosis unit: the unit functions mainly in the full life cycle management of the belt conveyor system, the analysis and diagnosis of key component data of the coal mine continuous transportation system equipment are realized, and early warning is realized. The predictive analysis and diagnostic algorithm of the belt conveyor key component is mainly researched.
The cloud platform 300 further includes a belt conveyor information pushing unit: the unit is mainly used for pushing the state information of the belt conveyor system to a business requirement link in time. The plate carries out planning and design on a service management mechanism and a flow of a belt conveyor transportation system to form a scientific information pushing mechanism and a system platform.
The cloud platform 300 also includes a belt conveyor CPS unit: based on a big data platform, an information physical system of the belt conveyor is built, the real-time animation state of the conveying system of the belt conveyor is displayed in a three-dimensional view mode, and the display is performed through the platform.
The cloud platform 300 further includes a belt conveyor video monitoring unit: the unit collects the video screen signals of each section of the belt conveyor and transmits the video screen signals to the big data remote monitoring platform of the belt conveyor, so that the video information is stored and displayed. The video of the belt conveyor transportation system can be played on line and off line on the platform. Meanwhile, the transportation operation condition and the production safety condition of the online or offline belt conveyor can be analyzed in real time through a video image analysis algorithm, the problems of equipment failure, safety production and the like can be found in time, and early warning is carried out.
The intelligent control of coal mine coal conveying constituted by the scheme is based on a digital adhesive tape machine monitoring system, is focused on the intelligentization of coal mine belt conveyor system operation and the intelligentization of coal flow cooperative operation, breaks through the monitoring of key working conditions such as coal material quantity detection, transfer point blockage, adhesive tape tearing, unmanned inspection, fault diagnosis and the like, and realizes the safe, efficient and intelligent operation of a coal mine main conveying system by adopting an advanced video image recognition technology, an unmanned inspection technology, an intelligent control technology and a large data platform and constructing a remote operation and maintenance system based on the Internet of things and a large data technology. The method aims to efficiently cooperate with the cooperation of human, equipment and system resources in mine safety production through an advanced digital means, ensure that correct messages are transmitted to correct people in a correct mode at correct time so as to make correct decisions timely, and realize the construction targets of centralized remote control, unattended operation, equipment on-line monitoring and fault early warning.
The coal conveying main transportation system of the coal mine adopts efficient energy-saving equipment such as permanent magnetic direct drive and variable frequency drive, so that the driving structure is simplified, the user maintenance amount and cost are reduced, and the transmission efficiency is high. Meanwhile, the functions of single machine self-adaptive speed regulation, continuous and balanced transportation of coal materials and system cooperative operation are realized by combining load distribution, transportation capacity and belt speed of a main transportation system. The high-efficiency control strategy realizes real-time monitoring and advanced prediction of conveyed materials from three aspects of a control process, a control system and control software, realizes balanced coal production through cooperative control of the belt conveyor along the main conveying line and a working surface, reduces the heavy-load shutdown times of the main conveying system, improves the production efficiency, reduces the mechanical impact wear and the system-level shutdown time, and prolongs the service life of equipment.
The safety of operation and maintenance personnel and equipment of the belt conveyor can be guaranteed by arranging the personnel electronic fence, the people on the belt surface, chute blockage, video monitoring and longitudinal tearing monitoring along the main transportation system, so that the full-automatic starting and stopping of the belt conveyor, the crusher, the coal feeder and other equipment of the main transportation system can be realized under the unmanned condition, the manual intervention is not needed, the operation is carried out according to a set program, and the belt conveyor can safely and stably operate.
In conclusion, the scheme comprehensively monitors and controls the coal conveyor by introducing intelligent control without human intervention, so that the intelligent control of coal conveying in the coal mine can be realized, and the coal conveying efficiency in the coal mine is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An intelligent control system for coal mine coal conveying is characterized by comprising a main control system and a front-end detection system; the front-end detection system comprises a load distribution monitoring unit, a personnel safety monitoring unit, an environment safety monitoring unit and an equipment safety monitoring unit; the load distribution monitoring unit, the personnel safety monitoring unit, the environment safety monitoring unit and the equipment safety monitoring unit are respectively in data interaction with the main control system, and monitoring and control of coal quantity, personnel safety, environment safety and equipment safety are carried out on the conveying belt.
2. The intelligent control system for coal mine coal conveying according to claim 1, wherein the personnel safety monitoring unit comprises a plurality of personnel safety acquisition modules and an alarm module; the personnel safety acquisition modules are distributed and installed at the underground critical part, monitor the real-time condition in the well and transmit the monitored data to the main control system; the main control system is connected with an alarm module in a driving way;
the main control system analyzes and processes real-time data in the well collected by the personnel safety collecting module, and if an abnormal condition in the well is identified, the alarm packet block is triggered to alarm.
3. The intelligent control system for coal mine coal conveying according to claim 1, wherein the environmental safety monitoring unit comprises a plurality of temperature measurement modules and an alarm module; the temperature measurement modules are distributed in the well, detect the temperature in the well in real time and respectively transmit the data of the real-time detection to the main control system; the main control system is connected with an alarm module in a driving way;
the main control system analyzes and processes the data pair detected by the temperature measurement module, and drives the alarm module to give an alarm if the temperature in the well is abnormal.
4. The intelligent control system for coal mine coal conveying according to claim 3, wherein the environmental safety monitoring unit is cooperatively provided with an over-temperature watering module based on thermal imaging, and the over-temperature watering module is arranged in the well and is cooperatively connected with the main control system;
the overtemperature sprinkling module comprises an acquisition submodule, an identification submodule, a judgment submodule, an alarm submodule and a sprinkling module; the collection submodule is installed at a proper point position of a driving position of the belt conveyor and is connected with the identification submodule, a thermal imaging graph of a belt conveyor roller monitored in real time and an ambient temperature thermal imaging graph are transmitted to the identification submodule to be subjected to image processing, the identified data are compared with a threshold value of the temperature, if the temperature is higher than a set threshold value, the alarm module is triggered to alarm, and meanwhile, the water sprinkling module arranged in the well is driven to sprinkle water, extinguish fire and cool.
5. The intelligent control system for coal conveying in coal mine according to claim 1, wherein the load distribution monitoring unit comprises a plurality of load distribution acquisition modules; the load distribution acquisition modules are arranged on the belt conveyor and interact with the main control system in data mode, monitored data are transmitted to the main control system through the load distribution acquisition modules, and the main control system controls the transportation system to automatically adjust speed and tension and start and stop time according to coal conveying quantity according to load conditions of all devices on a detected conveying link.
6. The intelligent control system for coal mine coal conveying according to claim 1, wherein the equipment safety monitoring unit comprises a foreign matter monitoring module and a longitudinal tearing monitoring module and is respectively in data interaction with a main control system.
7. The intelligent control system for coal mine coal conveying according to claim 6, wherein the foreign matter monitoring module comprises a foreign matter detection submodule and a material accumulation detection submodule;
the foreign matter detection module comprises a collection device and an alarm device; the collecting device is arranged above the coal bunker opening, monitors the conveying belt in real time, and transmits the monitored data to the main control system; if foreign matters suddenly appear and stay for more than a set time in the production process, the main control system sends out the foreign matters to trigger an alarm device;
the material accumulation detection submodule comprises a detection device and an alarm device; the detection device is arranged in the monitoring area to monitor the conveying belt in the monitoring area and transmit the monitored data to the main control system; the main control system is connected with the alarm device and the conveying belt device in a driving way; if the belt conveyor is suddenly stopped or a large material blocks the bin opening, the coal flow at the discharging bin opening exceeds the set height and time, and the main control system triggers the alarm device and drives the conveyor belt to stop.
8. The intelligent control system for coal mine coal conveying according to claim 6, wherein the longitudinal tearing monitoring module comprises an image data acquisition module, an image data transmission module and an image processing module;
the image acquisition part is used for acquiring the running image samples of the conveying belt and transmitting the running image samples to the image processing module through the image data transmission module, and the image processing module analyzes, processes and judges the transmitted data samples, calculates the tearing state of the conveying belt and feeds the processing result back to the main control system for stopping the running of the conveying belt.
9. The intelligent control system for coal mine coal conveying according to claim 1, further comprising a coal bunker management unit; the coal bunker management unit is in data interaction with the main control system; the coal bunker management unit comprises a coal level sensor, the coal level sensor monitors the coal bunker coal level in real time and transmits monitored data to the main control system, and when the coal bunker coal level is lower than a threshold set by the main control system, the main control system drives the coal feeder controller to stop the coal feeding of the coal feeder.
10. The intelligent control system for coal mine coal conveying according to claim 9, wherein the bunker management unit is further provided with a monitoring module and an alarm module in a matching manner; the monitoring module is installed in main shaft belt conveyor tail department and monitors the run storehouse accident of tail and gives main control system with monitoring data transmission, if monitoring ground water level lifting to the change is rapid, then main control system drive alarm device reports to the police.
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| CN202211559732.5A CN115857402A (en) | 2022-12-06 | 2022-12-06 | Intelligent control system for coal conveying of coal mine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116112886A (en) * | 2023-04-11 | 2023-05-12 | 北京迪为双兴通讯技术有限公司 | Data processing method, base station and 5G fusion communication network system composed of base stations |
| CN117115758A (en) * | 2023-10-25 | 2023-11-24 | 山西榕行智能科技有限公司 | Control method based on intelligent main coal flow transport AI monitoring system of coal mine |
| CN117509067A (en) * | 2024-01-04 | 2024-02-06 | 山西华智弘兴科技有限公司 | Mining conveyor system with detection function and operation method |
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2022
- 2022-12-06 CN CN202211559732.5A patent/CN115857402A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116112886A (en) * | 2023-04-11 | 2023-05-12 | 北京迪为双兴通讯技术有限公司 | Data processing method, base station and 5G fusion communication network system composed of base stations |
| CN117115758A (en) * | 2023-10-25 | 2023-11-24 | 山西榕行智能科技有限公司 | Control method based on intelligent main coal flow transport AI monitoring system of coal mine |
| CN117115758B (en) * | 2023-10-25 | 2023-12-26 | 山西榕行智能科技有限公司 | Control method based on intelligent main coal flow transport AI monitoring system of coal mine |
| CN117509067A (en) * | 2024-01-04 | 2024-02-06 | 山西华智弘兴科技有限公司 | Mining conveyor system with detection function and operation method |
| CN117509067B (en) * | 2024-01-04 | 2024-03-22 | 山西华智弘兴科技有限公司 | Mining conveyor system with belt longitudinal tearing detection function and operation method |
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