I. Overview

The aircraft achieved with a single machine replace several ordinary vibrating bed used in tandem, the lower the investment in equipment and construction costs, while advanced vibration structure ensures synchronous vibration on large vibrating bed width, length, direction, solution to a common dual-motor bias, channeling problem vibrating bed, to avoid the stationary fluidized bed partial death bed, wall accumulation, channeling, slugging and other issues.

Second, the main structure and working principle

Dryer mainly by the upper chamber, the bellows, the base, the fluidized bed boards and other components. On the composition of the upper chamber and bellows plastids, the base for the next plastids, on connected through the plate between the spring and the coil spring under plastids, plastid and lower base by rubber cushion between vibration isolation. Bellows rear box is equipped with exciter.
Box exciter by the motor via a belt drive, horizontal exciting force generated by the plate spring (resonance spring) the role of the dryer with some frequency vibration, the vertical force component and the hot air through the nozzle plate together with the toss nozzle plate material, the material in a fluidized state, while the horizontal component of the material fed forward at a constant speed, the weir and the hopper discharge, thus completing the drying operation. Fluid bed plate covered with a hood, to prevent products fall into the wind box during parking, and generate horizontal airflow to ensure uniform material flow. Material level within the dryer can be adjusted weir.

Third, the main features of

The machine has the following characteristics:
1. The fluidized uniform and stable, no dead bed and blow through, wall accumulation, channeling, slugging phenomenon, get even dry products;
2. This machine uses separate dragging, smooth operation, easy maintenance, low noise and long life of equipment;
3. Adjustable resistance, material thickness, and material residence time in the machine can be adjusted;
4. Avoid falling into the wind in the parking box, reducing the product in contact with the dryer and hot plate;
5. The working environment is clean, continuous operation;
6. High frequency vibration hot air more evenly distributed, improving the efficiency of heat transfer between hot air and wet materials, energy-saving effect.

Fourth, the use of

Widely used in petrochemical, chemical, pharmaceutical, food, grain, feed, salt, seafood processing and ultra-fine drying and other fields, it can set the initial moisture content of 78% of the product is dried to 0.5%.

Fifth, the process and explain

Process drying system to dry the polyacrylamide example.
Granulator out from the polyacrylamide particles from the forward end of the conveying fan fluidized bed dryer feed. The dried product from the other end of the fluid bed dryer unloading. Through the air filter clean filtered air into the heated respectively by two fans and two air heaters are to a certain temperature in the first drying zone and a second fluidized bed drying zone, and materials for heat and mass transfer, evaporation of moisture from the material out with the air from the top of the fluidized bed into the cyclone dust, exhaust gas after the separation import exhaust manifold, the induced draft fan into the chimney into the atmosphere. Dust collected by the cyclone lower part of the rotary valve and fines are recovered return the fan to the end of the second stage fluidized bed drying zone of the head and second drying zone.