

Hopper scales realize material level control by weighing, the material can be liquid or granular solid. Usually 3 or 4 force sensors are used. The weight of the material is converted into an electrical signal by the force sensors and amplified by the amplifier in the measuring circuit for display, recording and data processing. It has automatic zeroing and weighing data processing functions.

Hopper scale as a measuring and controlling equipment for material dosage, it is a kind of measuring and dosage equipment which is fixed on a weighing module as a whole, with a bucket door installed at the bottom of the side, which can be opened and closed by electromagnetic pneumatic valve to carry out timing and quantitative unloading and feeding (when the bucket door is opened the material inside the hopper scale is unloaded out, while when the door is closed the material can be put into the hopper scale from above through the electric vibration machine or the spiral comparator knife), which is composed of bucket container. Measuring and batching equipment. Because the hopper scale has a simple structure, easy to produce, low failure rate, dosing accuracy to meet the requirements of the production process and so on.
Hopper scale is specially designed for bulk material weighing, stable operation, fast and efficient.
There are two main types of automatic hopper scales, Electronic scales and non-continuous totalizing scales, which are designed to obtain the target value of a single weighing, and non-continuous totalizing scales, which are designed to obtain the target value of the accumulation of multiple weighings. Structurally speaking, and non-continuous totalizing scales have a feeding device, a weighing module and an unloading device, while there is also a bagging and packaging device. With the development of process automation in the logistics industry, automatic hopper scales are increasingly being used in other industries, thus placing higher demands on the weighing speed and accuracy of automatic hopper scales.
Measurement control system through the hopper scale 4 ~ 20mA signal connected to the dual signal transmitter, divided into two ways, one way to access the control system, one way to access the new acquisition system. The original PLC control system's acquisition and transmission methods remain unchanged, while the new acquisition system communicates directly with the weighing equipment by installing RTU devices at the site of each district and city, reads the data by using the Modbus/Tcp protocol, and then uses the judgment stabilization algorithm to get the amount of coke loaded each time. The RTU devices added in each district city are connected to the backbone Ethernet through the network interface, and the system communicates with the regional RTUs through the Ethernet, and uses the Modbus protocol format to interact with the data at each site.The Modbus protocol defines the information structure that the controllers can recognize and use, and when communicating on a Modbus network, the protocol enables each controller to know its own device address, and to Identify the data to the addressing, take out the data information contained in the packet, the controller can also organize the answer information, and use the Modbus protocol to transmit this information.
Product features:
Adopting static metering method and dynamic load weight module, the metering is accurate and reliable.
The loading system can be integrated with several sets of bulk scale control systems and controlled using one set of group control software system, which centralizes the data, makes it easy to summarize and saves costs.
Can be set to instant weighing and printing, weighing and typing, to ensure the safety of measurement data.
It can be connected with vibration motor, feeding screw, discharging screw, discharging ready, on-site alarm and other signals.
It can be set to automatic calibration, after the system starts, the weights will be loaded automatically to calibrate the scale, if abnormal, it will not be able to continue and alarm will be given.
Special blocking judgment technology, better solve the blocking phenomenon.
Professional weighing computer (optional), stable and trouble-free operation, no maintenance.
Professional bulk weighing group control software (optional), easy to operate and rich in functions.