Application of FD500 in Salt Production

Salt is an essential seasoning in daily life. It is indispensable for daily meals. Historical texts describe salt as vital to diet. Long-term lack of salt can cause various health issues. Supermarkets offer many types of salt, such as sea salt, well salt, and rock salt. With continuous technological advances and growing market demand, salt production plants are gradually introducing automation technology. This improves production efficiency and reduces costs. One salt plant decided to adopt frequency converter technology. They aim to upgrade the production process with automation. This move will better meet market needs and enhance the company's competitiveness.

Implementation Plan

The core salt production process includes: raw material pretreatment → concentration → crystallization → separation and drying → finished product. Brine undergoes filtration and passes through a three-stage sedimentation tank. This removes more impurities. After the three-stage sedimentation, a filter press separates the salt mud. Workers then transport the salt mud to the salt field for further processing.

The FD500 series frequency converter applies in pumping the sedimented slurry into the filter press. This step helps salt crystallize quickly. Afterwards, the salt undergoes drying, preparing it for the next refinement stage.

First, the FD500 series frequency converter offers high torque at low frequencies. It also provides strong low-frequency torque. With 150% overload capacity, it delivers sufficient power. This ensures stable operation of the equipment.

Third, the motor uses soft start and soft stop. This method effectively protects the mechanical performance of the motor. As a result, it extends the service life of the equipment.

Finally, the frequency converter also provides full protection functions. These include overcurrent, overload, phase loss, and overvoltage protection. These features effectively safeguard the motor. They also help extend the motor's operational life.

Application Advantages  

1. Excellent energy saving performance: Using frequency conversion soft-start technology and an intelligent on-demand water supply mode achieves significant energy savings.  

2. Extends equipment life: Reducing frequent motor starts and stops minimizes mechanical impact and wear. This extends the service life of key equipment such as the filter press.  

3. Strong overload capacity and environmental adaptability: Ensures high operational reliability.