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Centralized Control Belt Weigher

Centralized Control Belt Weigher 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.

PP20210714144731
Product details
020-34563445

The centralized control Centralized Control Belt Weigher is an automatic Batching system composed of a control center, communication network system, control sub-stations, protection sensors and industrial television system. Among them, the centralized control center is responsible for the monitoring and control of the entire system, while the upper computer system is responsible for the information exchange and transmission between the operator and the on-site equipment. The operator acquires the information of the on-site equipment through the human-machine interface and issues control instructions to the on-site equipment when necessary. The communication network system uses industrial Ethernet for data transmission, with optical fiber as the transmission medium. It is responsible for the communication between the upper computer in the control center and the on-site equipment, transmitting the information collected by the on-site equipment and the internal information of the program to the ground upper computer management system. At the same time, it can also transmit the control instructions issued by the upper computer system to the controller. The control substation consists of a control box and an operation console.

The belt scale is programmed with corresponding control programs as needed to achieve specific control functions, and is responsible for realizing local manual control, centralized control and other functions of various control systems. The television system uses optical fiber as the transmission medium and transmits parallel video signals to the ground in a point-to-point manner. Through industrial television technology and in combination with computer image processing technology, real-time monitoring of on-site information is achieved. This system can store real-time production monitoring data in the historical database of real-time production data, and can achieve comprehensive analysis such as historical echo, historical trend analysis, and historical reports. It can save the information of a certain alarm event for checking and analyzing its cause or reporting work to the superior leader, and can save the data information as text on the computer hard disk. The belt centralized control system monitors and controls all signals such as sudden belt stop, deviation, coal accumulation and slippage during the belt transmission process. The centralized control system for belt conveyor transportation adopts a distributed computer control system mechanism through industrial computers, network TV systems, network switches, network cameras, and programmable controllers Sensors and other devices enable ground remote centralized control of the main coal flow transportation belt conveyor, coal Feeder and scraper conveyor and other equipment in coal mines. They are equipped with all the belt protection functions stipulated in the "Coal Mine Safety Regulations" and have complete video monitoring and control functions. It can significantly enhance the management level and operational efficiency of the transportation system.

Technical parameters

Weighing capacity: below 6,000 tons per hour

Flow upper limit: Relay contact output

Belt width: 500-2200mm

Lower limit of flow: 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 rate: kg/ min (4-20mA)

Power supply range: 240-220V 50Hz

Combined scale body, multi-roller or single-roller structure, weighing mechanism


Operation management of belt scale in dosage system
The belt scale receives the speed signal of SR and the weight signal, calculates the instantaneous flow rate of the material on the belt and displays it, compares the actual value of the flow rate with the set value of the flow rate, and through PID regulation, the output current control signal is amplified by the preamplifier and the power amplifier Q to control the conduction angle of the SCR VT and thus regulate the rotational speed of the sliding motor M, so as to make the material flow rate stabilize at the expected set value.
The concept of automatic sorting machine formation and composition
The automatic sorting machine is fed into the sorting control system through barcode scanning, color code scanning, keyboard input, weight detection, voice recognition, height detection and shape recognition, etc., and decides which sorting channel the commodities will enter according to the weight signal judgment.
Weighing Control Program for Metering Sorting Machines
The Metering Sorting Machine measures the weight of the product during the transfer process, compares the measured weight with a pre-set weight range, and rejects products that do not meet the weight standard, or picks products with different weight ranges into a designated weight class area.
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