The working principle of desolventizer toaster is to remove solvent from solid materials after solvent leaching, and at the same time, heat and dry the materials properly to meet the quality requirements of subsequent processes or products. The following is its main working process:

1. Material input

The leached solid materials (such as soybean meal) enter the desolventizing dryer through the feeding system. At this time, the material contains high solvent residue and needs further treatment.

2. Steam heating

There are several heating layers in the equipment, and each layer is equipped with a steam heating device. Steam passes through the heat exchanger or directly enters the equipment, contacts with the material, and gradually heats it. The purpose of heating is to volatilize the solvent in the material while maintaining the physical and chemical characteristics of the material.

3. Solvent evaporation

During the heating process, the solvent in the material is evaporated to form steam. These vapors are pumped out and sent to the condensation system for recovery, thus reducing the waste of solvents and reducing environmental pollution.

4. Material mixing and moving

The equipment is usually equipped with a stirring device to ensure that the materials are evenly distributed in all layers and fully contact the heating surface. At the same time, the stirring device is also helpful for the material to move downwards layer by layer, thus completing the whole desolventizing and drying process.

5. Drying and cooling

In the final stage of desolventization, the material is further heated and dried to reach the required moisture content. Some equipment will also be equipped with a cooling device at the outlet to reduce the material temperature to a safe range.

6. Output of finished products

The desolventized and dried materials are finally discharged from the bottom of the equipment and become products that can be directly packaged or entered into the next process.

In the whole process, the equipment needs to accurately control the temperature, pressure and stirring speed to ensure the desolventizing effect and product quality. At the same time, the solvent recovery system also plays the role of energy saving and environmental protection, reducing the waste of resources.

In a word, the desolventizer toaster is an important equipment in the oil processing industry, and its efficient desolventizing and drying functions are of great significance for improving product quality and production efficiency.