Application and environmental advantages of closed operating environment in Screw Extruder Underwater Pelletizing System

1. Design principle of closed operating environment
In the traditional granulation process, the molten material is usually exposed to the air after being cut by the die, and the cut particles may generate dust due to air flow. These dusts not only affect the cleanliness of the environment, but also pose a threat to the health of the operators. However, the closed operating environment of the Screw Extruder Underwater Pelletizing System eliminates this problem by cutting underwater.

2. How does the closed operating environment reduce dust emissions
The biggest advantage of the closed operating environment is that it can effectively prevent the molten material from being exposed to the air. In the traditional granulation system, once the material is cut, it will quickly contact the air and form dust. In the Screw Extruder Underwater Pelletizing System, the material is immediately wrapped and cooled by the water flow after cutting, preventing the particles from flying.

The closed environment means that all cutting and cooling processes are completed in water, and the outside air cannot enter the system, which not only avoids the contact between the material and the external environment, but also reduces the pollutants in the air from entering the production area. The stable and rapid cooling effect of the water flow further reduces the volatility and particle size variation of the material, thereby ensuring high consistency and low dust in the production process.

In the traditional granulation process, dust may spread outside the workshop due to wind or other operating factors, causing environmental pollution. The design of the closed operating environment allows the particles and cutting waste to be surrounded and washed away by the water flow, effectively suppressing the spread of dust from the source. Even the tiny particles generated during cutting will not fly or float in the workshop, avoiding large-scale dust pollution.

3. Environmental advantages: water resource circulation and wastewater treatment
In addition to dust control, the closed operating environment also has significant advantages in water resource utilization and wastewater management. The system is usually equipped with a circulating cooling water system, so that the cooling water can be used multiple times in different production cycles, thereby reducing the demand for fresh water sources.

Traditional granulation processes often require a large amount of cooling water, and of these water resources are discharged after one use. In the Screw Extruder Underwater Pelletizing System, the cooling water is recycled, which not only reduces the dependence on external water sources, but also reduces production costs.

Although the closed system reduces the generation of wastewater through the circulating water system, some wastewater is still generated during the cleaning and maintenance process. The pollutants in these wastewaters can be effectively treated by modern wastewater treatment technology. The treated wastewater can meet the discharge standards, or be recycled and reused in the production process to achieve zero discharge or recycling of wastewater.

4. Impact on industrial safety and working environment
The closed operating environment is not only to reduce dust emissions, but also greatly improves the safety of industrial production and the comfort of the working environment. In a closed environment, workers do not need to be exposed to high temperatures or harmful gases, reducing the health risks of workers due to dust and high temperatures. Compared with traditional open systems, the closed environment provides a safer production space, further improving production efficiency and employee work enthusiasm.

5. Applicable industries and application prospects
The closed operating environment is particularly suitable for industries with high requirements for environmental protection, such as chemicals, pharmaceuticals, food and other industries. As global environmental regulations become increasingly stringent, the Screw Extruder Underwater Pelletizing System, with its closed system and water recycling design, helps companies reduce the pressure of environmental compliance while achieving green manufacturing.