Belt scale is mainly composed of weighing bridge, weighing sensor, speed sensor, weighing instrument and so on. The weighing bridge is installed on the conveyor frame. When the material passes by, the measuring roller detects that the weight of the material on the belt machine acts on the weighing sensor through the lever, generating a voltage signal proportional to the load of the belt. There is a weighing sensor installed on the weighing bridge on the belt scale. When working, the material weight detected on the belt is sent to the weighing instrument, and the speed signal of the belt conveyor by the speed sensor is also sent to the weighing instrument. The instrument integrates the speed signal and the weighing signal to obtain the instantaneous flow and cumulative amount.
020-34563445The belt scale is an automatic Batching system composed of centralized control center, communication network system, control sub-station, protection sensor and industrial TV system. The centralized control center is responsible for the monitoring and control of the whole system, and the upper computer system is responsible for the information exchange and transmission between the operator and the field equipment. The operator obtains the information of the field equipment through the man-machine interface and issues control instructions to the field equipment when necessary. The communication network system uses industrial Ethernet for data transmission, and the transmission medium is optical fiber. It is responsible for the communication between the upper computer in the control center and the field equipment, and transmits the information collected by the field equipment and the internal information of the program to the ground upper computer management system. At the same time, the control instructions issued by the upper computer system can also be transmitted to the controller. The control sub-station is composed of control box and operation station. The proportioning system can write corresponding control program according to the needs to realize specific control functions, and is responsible for realizing the local manual and centralized control functions of each control system. The TV system uses optical fiber as the transmission medium, and transmits the video signal to the ground in a point-to-point way. Through industrial TV technology and computer image processing technology, the real-time monitoring of on-site information is realized. The system can store the production real-time monitoring data in the production real-time data history database, can realize the historical display, historical trend analysis, historical report and other comprehensive analysis, save an alarm event information to check and analyze its cause or report to the superior leadership, can save the data information as text in the computer hard disk. The belt centralized control system monitors and controls all the signals in the belt transmission process, such as belt emergency stop, running off, coal stacking, slipping, etc. Belt conveyor transportation centralized control system adopts distributed computer control system mechanism through industrial computer, network TV system, network switch, network camera, programmable controller Sensors and other coal mine main coal flow transport belt machine, coal Feeder and scraper and other equipment to achieve remote centralized control of the ground with the "coal mine safety regulations" stipulated in the belt protection and perfect video monitoring monitoring function. It can greatly improve the management level and operation efficiency of the transportation system.
Technical parameters:
Weighing capacity: 6000t/h or less
Flow limit: relay contact output
Belt width: 500-2200mm
Flow limit: relay contact output
Belt speed: 0.1-4m/s
Ton pulse: The cumulative unit can be set arbitrarily
Accuracy: ±0.5% of the cumulative quantity
Instantaneous flow: kg/ min (4-20mA)
Power supply range: 240~220V 50Hz
Combined scale body, multi-roll or single-roll structure, weighing mechanism
