Belt scale is an automatic weighing device that measures loose materials placed on a belt and transported along the belt. By using sensors to obtain the instantaneous weight of materials on the belt and the conveyor speed, and then integrating the two, the cumulative amount of materials can be obtained. Belt scales generally use weighing rollers, roller frames, weighing sensors, and bases. The weighing rollers are set on the roller frames to support the conveyor belt, the roller frames are set on the weighing sensors, and the weighing sensors are set on the bases. When the conveyor belt transports materials through the weighing roller, due to gravity, the weighing sensor obtains weight signals and thus obtains the weight of the materials. The belt scale adopts a belt, and one side of the belt is equipped with an active roller, which is equipped with a driving motor. By starting the driving motor, the active roller can be driven to rotate, so that the belt can work normally. The lower part of the active roller is fixedly connected to a support frame, and the other side of the belt is equipped with a passive roller. The lower part of the passive roller is fixedly connected to a support frame, and the other end of the support frame is equipped with a base. The device can be supported by the support frame and the support frame. One side of the base is rotatably connected to a rocker arm, and one end of the rocker arm is penetrated inward with a screw rod. The screw rod on the screw rod is connected with a threaded block, and the internal screw rod can rotate by rotating the rocker arm. Under the restriction of the threaded connection and the inner wall of the base, the screw rod drives the threaded block The chute, The threaded block runs through the groove and is fixedly connected to the support frame. By setting the groove, the threaded block can drive the upper support frame to move, thereby driving the driven roller to move together, adjusting the tightness of the belt, and achieving the convenience and practicality of its device.

The centralized belt scale is an automatic Batching system composed of a control center, communication network system, control substation, protection sensors, and industrial television system. The centralized control center is responsible for monitoring and controlling the entire system, while the upper computer system is responsible for information exchange and transmission between operators and on-site equipment. Operators obtain information about on-site equipment through the human-machine interface and issue control commands to on-site equipment when necessary. The communication network system adopts industrial Ethernet for data transmission, with optical fiber as the transmission medium. It is responsible for the communication between the control center upper computer and the on-site equipment, transmitting the information received 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, responsible for implementing local manual and centralized control functions of various control systems. The television system uses fiber optic as the transmission medium and transmits the merged video signal to the ground in a point-to-point manner. Through industrial television technology combined 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 production real-time data historical database, and can achieve comprehensive analysis such as historical feedback, historical trend analysis, and historical reports. It can save information about a certain alarm event for inspection and analysis of its cause or report work to superiors. The data information can be saved as text on the computer hard drive. The belt centralized control system monitors and controls all signals during the belt transmission process, including emergency stop, deviation, coal stacking, and slippage. The centralized control system for belt conveyor transportation adopts a distributed computer control system mechanism through industrial computers, network television systems, network switches, network cameras, programmable controller sensors, etc. to achieve remote centralized control of equipment such as coal mine main coal flow transportation belt conveyors, coal Feeders, and scraper conveyors on the ground. It has various belt protections and complete video monitoring functions as stipulated in the Coal Mine Safety Regulations. It can significantly improve the management level and operational efficiency of the transportation system.

Technical Parameters:

Weighing capacity: below 6000t/h

Flow limit: Relay contact output

Belt width: 500-2200mm

Lower limit of flow: relay contact output

Belt speed: 0.1-4m/s

Ton pulse: cumulative unit can be set arbitrarily

Accuracy: ± 0.5% of cumulative measurement

Instantaneous flow rate: kg/min (4-20mA)

Power supply range: 240~220V 50Hz

Combination scale body, multi roll or single roll structure, weighing mechanism