High-precision electronic belt scale

Detailed introduction:

High-precision belt scale adopts new design concept, new product structure and software technology, which substantially improves the weighing accuracy and long-term stability of the belt scale.

The weighing scale body is designed with high bending resistance structure, which is simple in structure, light in weight, and fast and convenient in site installation. The weighing idler group uses the original idler group of the belt conveyor, which can be maintenance-free for a long time in daily work.

This product is especially suitable for long-term operation under harsh working conditions and plays a key role in improving the stability of the belt weigher in the long-term stability period.

System technical specifications

Accuracy: ± 0.2% (when the number of units N ≥ 8)

Flow range: 0-5000t/h

Belt width: 400-1800mm

Belt speed: 0.02-4m/s

Belt inclination: 0-18o (determined according to material characteristics)

Number of bridge group units: 2-16 groups optional

High-precision electronic belt scale

working principle:

The high-precision belt scale consists of three main parts: weighing unit, speed sensor and digital junction box, and weighing display controller.

The weighing unit equipped with a weighing sensor is installed on the longitudinal beam of the conveyor. The weighing unit detects the weight of the material on the belt and generates an output signal proportional to the belt load.

The speed sensor directly obtains a series of pulses on the driven roller or the speed measuring wheel. Each pulse represents a belt movement unit. The frequency of the pulse is proportional to the belt speed. The weighing display controller receives and processes the output signals of the weighing sensor and the speed sensor, and generates an instantaneous flow value and the accumulated total amount, which are displayed on the display respectively.

weighing unit

The weighing unit is composed of two single-point load cells, a reference underframe and the upper frame of the weighing idler group. Two single-point weighing sensors completely cover the weighing range of the conveyor with different belt widths and different idler spacing, overcoming the sensor accuracy loss caused by the small weighing range of a single weighing sensor and the uneven material; The base frame greatly simplifies the installation of the weighing unit and improves the installation accuracy.

The weighing unit is made of special steel structural profiles, with advantages such as good rigidity, convenient installation, and less maintenance. The surface and components of the weighing unit are processed by polishing and spraying plastic, and are suitable for outdoor or various special bead corrosive environments.

Weighing unit group

Multiple weighing units are installed in parallel to form a "weighing unit group". The weighing unit group can be installed with 2-12 units according to the user's technical requirements and site conditions. The weighing unit installed in the row and the weighing sensor installed on both sides of the weighing unit are independently input to the on-site digital acquisition box for detection and processing. The extremely powerful information advantages formed by the cluster structure and the introduced optimization algorithm effectively solve the influence of the common factors such as "belt tension", "material bias", and greatly improve the operating accuracy and system stability of the belt scale system.