Coal Conveyor Belt Corridor Safety Environment Monitoring System

The main components of the safety environment monitoring system of coal belt corridor include: infrared thermal imaging online temperature measurement system, gas and dust concentration monitoring system, etc.

1 Infrared thermal imaging online temperature measurement system
This system organically combines temperature measuring infrared thermal imager with common visible light camera system, which can realize accurate temperature monitoring of coal transported on the belt, and has the functions of automatic warning, remote control, manual temperature measurement, trend analysis, report management, etc.
The system combines image monitoring, intelligent patrol system, and applies the world's leading infrared thermal imaging instrument and precise temperature measurement technology to realize real-time monitoring of coal anti-spontaneous combustion.

The installation schematic is as follows:

Installation instructions:
Install specific brackets and pipes on both sides of the belt, install the infrared thermal imager at the bracket beam, adjust the monitoring angle of the infrared thermal imager (generally set between 45° and 60°), scan the coal on the belt, and alarm when a super high temperature (limit 70°) is found.
2 Gas and dust monitoring systems
The system equipment mainly includes: dust concentration detector, oxygen concentration detector, carbon monoxide concentration detector and methane concentration detector, which detect the dust concentration, oxygen concentration, carbon monoxide concentration and methane concentration in the environment in the testing area of the corridor respectively, and set the safety threshold and alarm for exceeding the limit to ensure the personal safety of the staff in the corridor and guarantee the normal operation of the equipment.

The installation schematic is as follows：

Installation Instructions：
1）Install specific brackets and tubes on both sides of the belt, and install dust concentration detectors, oxygen concentration detectors, carbon monoxide concentration detectors and methane concentration detectors at the bracket beams respectively；
2）The dust concentration detector and oxygen concentration detector, carbon monoxide concentration detector and methane concentration detector are installed on the frame of the belt corridor, which is a simple installation method with convenient wiring and convenient for later maintenance and replacement.

3 System Equipment Introduction

3.1  XKCON-TM-W explosion-proof main control cabinet
Product description：
The XKCON-TM-W type main control cabinet is a multi-functional intelligent monitoring host developed by our company for application sites with explosion-proof requirements. It supports multiple communication methods such as Ethernet, RS485, RS232, 4-20mA, 0-5V, etc. It has functions such as switch input, relay output, audible and visual alarm, historical record memo query, alarm record query, and data packing transmission.
The host control board adopts our self-developed XKCON-MC-B-V41 type main control board, which has the patent and software copyright certificate of independent intellectual property rights (registration number: 2018SR382811).
The main control board meets industrial grade design standards to meet various industrial site use conditions
Adopt embedded real-time operating system with high reliability and system stability
Integrated PID, fuzzy control, artificial neural network, Kalman filter, multi-level sensor combination positioning algorithm and other industrial advanced algorithm library
2 x 485 interfaces, both configurable as Modbus RTU masters or slaves, with access to all types of our 485 transmitters
With 1 RJ45 network port, you can upload the monitoring data from the host to the remote monitoring software platform
With 1 channel 232 interface, can parse messages according to customer needs
Automatic identification of RS485 interface from the device is working properly
8 expandable switch isolated input interfaces
6 way relay contact output, support normally open, normally closed output
6 analog signal inputs, support 4-20mA, 0-5V signal
1-channel audible and visual alarm output interface
Support TCP/IP, UDP, Modbus RTU and other industrial communication protocols
Message parsing and control function development can be customized according to customer needs
The host interaction adopts large size color industrial touch screen with high resolution and fast refresh speed, which is very convenient and comfortable to operate and browse. Touch screen can set the alarm threshold, if the data exceeds the threshold will issue an acoustic and optical alarm. Support historical data and alarm record retrospective query. Operation interface and functions support custom development.
Applications
It is applied to industrial sites with explosion-proof requirements such as coal mines, power plants, petrochemicals, etc. It is used for collecting, processing, displaying and transmitting on-site environmental transmitter data, and providing real-time alarms according to the set threshold values.
Technical characteristics
XKCON-TM-W-15550kg
Explosion-proof certificate：

3.2 XKCON-TIS explosion-proof infrared thermal imager
Product description
XKCON-TIS series explosion-proof monitoring and temperature measurement type infrared thermal imager is a real-time monitoring and surveillance equipment integrating infrared thermal imaging, visible light and embedded processing system, this equipment can automatically inspect the running equipment, real-time monitoring, automatic warning and real-time access to equipment fault status thermal information, and automatically generate the corresponding temperature change report, built-in analysis function, automatically send the analysis results. It can also be shared to the main control cabinet on site according to the analysis results for alarm and control of external equipment, with the characteristics of non-stop, long-distance, safe and reliable, high detection accuracy, is one of the very effective means to achieve online monitoring and equipment status maintenance.
Infrared thermal imager with Ethernet and 485 interface, can output the highest temperature on site through the network port or 485 port, which is convenient to connect to the control cabinet installed on site for real-time display of temperature information.
Infrared thermal imager adopts uncooled infrared detector, mainly used for night, rain and fog weather conditions and harsh environment monitoring, can work around the clock, in the day and night and smoke, fog, rain, snow, dust and other conditions also have better performance.
XKCON-TIS series explosion-proof monitoring and temperature measurement infrared thermal imager meets GB 3836.1-2010 "Explosive Environment Part 1: Equipment General Requirements", GB12476.1-2013 "Electrical Equipment for Combustible Dust Environment Part 1: General Requirements", and is suitable for places with ⅡA, ⅡB, ⅡC combustible gases, with ignition temperature group T1-T6. Zone 1, Zone 2, combustible gases or vapors and air to form an explosive mixture of places, also applicable to the ignition temperature group T1-T6, Zone 20, Zone 21, Zone 22, containing combustible dust mixture of places. Such as: petroleum, chemical, mining, military, pharmaceutical, oil depots, ships, drilling platforms, gas stations, artillery production, food processing storage, etc.
Functional Features
24V DC power supply
High-level explosion-proof certification for a variety of harsh and high-risk locations
Low power consumption, low power consumption, convection type heat dissipation design inside the body, can work uninterruptedly for a long time
Made of 304 stainless steel, suitable for use in strong corrosive environments
Explosion-proof, waterproof, dustproof design, suitable for indoor and outdoor installation, all-weather use
Maximum temperature can be output via Ethernet and 485 interface
Main Applications
It is applied to video and temperature monitoring sites with explosion-proof requirements, such as petroleum, chemical, mining, military, pharmaceutical, oil depot, ship, drilling platform, gas station, flower artillery production, grain processing and storage, etc.
Technical characteristics

Note: This product must be used in the coal field to require the equipment as a whole explosion-proof, and the manufacturer to provide the corresponding explosion-proof certificate and inspection report; pay special attention to some manufacturers directly take the explosion-proof head to replace the product explosion-proof certificate, the later will be caused by equipment problems caused by temperature monitoring is not sensitive or even will stop working, and then cause safety hazards.
Explosion-proof certificate：
3.3 XKCON-G600-CH4 methane concentration detector
Technical parameters：
Detection method: Diffusion type
Measurement range：0-100%LEL
Resolution：0.1%LEL
Output form: RS485 communication
Linearity error：≤±2%
Protection level：IP66
Alarm mode: sound and light alarm
Explosion-proof grade：Exd IIC T6 Gb/Ex tD A21 IP66 T80℃

3.4 XKCON-G600-CO carbon monoxide concentration detector
Technical parameters：
Detection method: Diffusion type
Measurement range：0-2000PPM
Resolution：1PPM
Output form: RS485 communication
Linearity error：≤±2%
Protection level：IP66
Alarm mode: sound and light alarm
Explosion-proof grade：Exd IIC T6 Gb/Ex tD A21 IP66 T80℃

3.5 XKCON-G600-O2 oxygen concentration detector
Technical body parameters：
Detection method: Diffusion type
Measurement range：0-30%VOL
Resolution：0.1%VOL
Output form: RS485 communication
Linearity error：≤±2%
Protection level：IP66
Alarm mode: sound and light alarm
Explosion-proof grade：Exd IIC T6 Gb/Ex tD A21 IP66 T80℃

3.6 GCG1000 dust concentration detector
Specific parameters：
Measurement Range：（0-1000）mg/m3
Output Signal：RS485
Measurement error：±10%
Resolution：0.1mg/m3
Sampling flow error：≤2.5%
Sampling flow stability：≤±5%
Sampling flow rate：2L/min
Operating Voltage：24V DC
Operating current：≤200mA
Explosion-proof form: Intrinsically safe for mining
Explosion-proof signs：ExibII B T4 Gb/ExibD21 IP65T120℃