Our company specializes in the research, development, and production of a complete set of soybean dreg drying equipment lines, designed for drying soybean dreg. Equipped with an integrated continuous collection system, the production capacity exceeds 1500kg/h. Due to the high moisture content of the drying material, conventional dryers cannot achieve high capacity. It is precisely this advantage that allows our soybean dreg drying line to achieve high yields, successfully applied to a wide range of customers, and receiving unanimous praise.

The principle of operation for the soybean dreg complete drying equipment

Hot air enters the mixing and crushing drying chamber from the bottom of the dryer through the inlet pipe at an appropriate jet speed, exerting strong shearing, blowing, and rotating forces on the material. This causes the material to be micronized through centrifugal force, shearing, and collision friction, thereby enhancing mass and heat transfer.

Material enters the dryer through a spiral feeder, where it is subjected to strong impact, friction, and shearing from a high-speed rotating mixer, resulting in dispersion. Large pieces of material are rapidly crushed and come into full contact with hot air, heat, and dry. After dehydration, the dry powder rises with the hot gas. The grading ring retains large particles, while small particles are discharged out of the dryer at the center. They are recovered by a cyclone separator. Un-dried or large pieces, due to centrifugal force, are thrown against the walls and fall back to the bottom to be crushed and dried again.

Dreg complete drying equipment performance features

1. The desiccant is structured with an inverted cone shape at the bottom, allowing the cross-sectional area of the drying gas flow to gradually expand from bottom to top. The bottom air flow is relatively stronger, while the top air flow is relatively weaker, ensuring that both the larger particles at the bottom and the smaller particles at the top are in a fluidized state. This also causes the hot air to rotate along the conical section, enhancing the bottom wind speed, reducing the length of the suspended arm of the mixing shaft, and increasing the operational safety and reliability.

2. The mixing teeth are equipped with scrapers. As the material is crushed by the mixing teeth, it is also thrown towards the machine wall, sticking to the surface. If not scraped off in time, it can cause severe vibration of the equipment, even leading to the mixer becoming jammed and not turning. The scraper on the mixing teeth can timely remove the material stuck to the machine wall, preventing sticking.

3. The stirrer shaft speed is controlled by a variable speed motor. Select different speeds according to the product particle size requirements; the faster the stirrer shaft speed, the finer the product particle size will be.

4. The dryer is equipped with a classifier at the top, which adjusts the air flow rate by changing the hole diameter of the classifier and the height of the classification sections. This, in turn, controls the particle size and quantity exiting the dryer, the final moisture content, and the material's residence time in the drying section.

5. The screw conveyor of the feeder is controlled by an inverter-driven motor. The feeding speed is controlled based on the material properties and drying process parameters.