Application of load cell in cement industry

The basic requirements and special requirements of the weighing system of construction machinery mixing equipment, several issues that need to be considered when selecting sensors for the weighing system of construction machinery mixing equipment are put forward, and the influence of the sensor protection structure on the operation reliability of construction machinery mixing equipment is analyzed. The protection level represented by the IP code cannot cover all the protection requirements for the sensors of the construction machinery mixing equipment. It is recommended that different types of mixing equipment use sensors with different protection capabilities.
The selection of sensors in the weighing system usually takes into account the measurement limit, accuracy, installation space of the sensor, the possible influence of the surrounding environment on the sensor, the type of loading, and the life of the sensor. The weighing system of construction machinery mixing equipment is no exception. It's just that different weighing systems have different requirements and working conditions, so the issues to be considered are different.

Construction machinery mixing equipment usually includes a concrete mixing plant (station), an asphalt mixing plant, a stabilized soil mixing plant, and an offshore concrete mixing ship, among which concrete mixing plant (station) is a typical example. Let's take a concrete mixing plant (station) as an example for analysis.

1. Basic requirements for weighing system of concrete mixing plant (station)
1.1. Accurate weighing error has a great influence on the strength of concrete, especially the measurement accuracy of water-cement ratio, because the relationship between strength and water-cement ratio is linear. Related national standards stipulate that the dynamic measurement accuracy of cement, water, admixtures, and admixtures is ±1%, and the dynamic measurement accuracy of sand and stone materials is ±2%.
1.2. Quickly meet the requirements of the working cycle of the mixing plant.
1.3. There are many kinds of weighing values. There are many kinds of pre-selected weighing values, and the change should be convenient to meet the requirements of various ratios and different capacities.
1.4. Simple structure The weighing device should be simple in structure, firm and reliable, stable in performance and easy to operate.