Dehumidifying drying system
In the previous granulation process of engineering plastics, due to the high air humidity and the strong hygroscopicity of the raw materials, shrinkage, air bubbles, cracks, and poor transparency are prone to occur when the product is molded. The main reason for these poor quality is The plastic is not fully dried before it is formed, and the traditional hot air dryer cannot completely dry it.
The all in one machine combines drying dehumidifying and loading into one unit, and performs the Dehumidifying and drying process of raw materials in a fully enclosed low dew point of -40 degrees. The dehumidified plastic raw materials will not come into contact with the outside air. So as to meet the ideal demand of the market.
How to avoid problems in the production process with dehumidifying and drying system
1. Raw materials return to moisture
The air pipeline of the Dehumidifying dryer adopts a closed circulation system. Not affected by the external climate, won’t get wet again.
2. High production cost
The insulated drying hopper adopts down-blowing design, and a cyclone exhaust device to improve drying efficiency, prevent heat loss and ensure humidity;more than 30% compared with the same type. Reduce the drying time and labor cost of materials, and the drying effect is better.
3. Workshop pollution
Equipped with a filter, it can prevent dust leakage from causing pollution in the factory and keep the workshop environment clean.
4. Complicated operation and inaccurate temperature control
Using P.I.D temperature control technology, the regeneration and drying temperature can be precisely controlled, and various temperature and delivery parameters can be set on the touch screen.
The types of Dehumidifying and drying from Hengju Machinery which can provide for the membrane industry.
1. Standard Hopper Dryer
Economical model, low cost, easy to operate. The knot-only design can be directly installed on the molding machine for drying, which is quick and space-saving.
2. Three machines into one unit
It integrates three functions of Dehumidifying, drying and conveying, and is suitable for engineering plastics with strong hygroscopicity. Under ideal conditions, honeycomb wheel can provide dew point of -40℃ or even lower. Adopt P.I.D temperature control and LCD display,provide optional dew-point monitor and automatic feeding machine.
3. Crystallization dryer
Crystallization dryer helps the crystallization of plastic while dehumidifying and drying. It is characterized by fast crystal drying rate, low energy consumption, ability to maintain the physical properties of raw materials, and high molding quality of products.
4. Dehumidifying and drying system
Double-layer stainless steel energy-saving dryer and wheel-type honeycomb dehumidifying are used to ensure uniform drying temperature of plastics and purity of raw materials. Double-layer heat preservation has good heat preservation effect. Honeycomb wheel can provide dew point of -40℃ or even lower. Centralized automatic control can be realized by optionally selected PLC touch screen controller. For dehumidifying drying unit, heat exchanger is optional to realize heat recycling with which 30% energy can be saved.
Dehumidifying and drying chooses us, which is more professional, smarter and more at ease. Since its establishment, we have been focusing on the production and R&D of auxiliary equipment for plastic production, making products closer to customers’needs, and tailoring equipment solutions according to customers’ production needs.
