The specialized Roots blower for meltblown fabric is one of the key equipment on the meltblown fabric production line. Its main function is to provide high-temperature, high-pressure, and high-purity airflow for the meltblown mold head, to achieve the stretching of polymer melt fine flow, thereby forming ultrafine fibers and condensing them on the mesh curtain or roller, and finally producing meltblown fabric. The following is a detailed introduction to the Roots blower for meltblown fabrics:
1、 Main features
High pressure output: Roots blower can provide high pressure output to meet the demand for high-pressure airflow in meltblown fabric production.
Controllable flow rate: By adjusting the speed or inlet pressure of the Roots blower, the flow rate of the airflow can be controlled, thereby adjusting the fiber length and distribution of the meltblown fabric.
High purity: The Roots blower adopts a rotary mechanical air compression method, which does not require lubricating oil. Therefore, the output airflow has high purity and is free of oil stains, making it suitable for the production of meltblown fabrics.
Stable operation: Roots blower has a simple structure, low mechanical wear, long service life, and stable operation, which can ensure the continuous and stable operation of the meltblown fabric production line.
2、 Working principle
The working principle of Roots blower is to use two blade shaped rotors to compress and transport gas through relative motion inside the cylinder. Each concave curved surface on the rotor forms a working volume with the inner wall of the cylinder. During the rotation of the rotor, gas is taken away from the intake port. When it is moved to the vicinity of the exhaust port and connected to the exhaust port, there is a sudden increase in pressure in the working volume due to the reflux of high-pressure gas. Then, the gas is transported to the exhaust channel. The two rotors are not in contact with each other and are sealed by a tightly controlled gap between them.
3、 Selection and adjustment
Selection: When selecting, it is necessary to choose the appropriate fan model and performance parameters based on the actual needs of the meltblown fabric production line to ensure that the output flow rate, pressure, and purity of the fan meet production requirements.
Adjustment: During the production process, the output flow rate and pressure of the Roots blower can be adjusted by adjusting its speed, inlet pressure value, or outlet valve opening to meet the needs of different production stages.
4、 Common problems and solutions
Insufficient air volume: It may be caused by insufficient inlet pressure, obstruction of fan inlet and outlet, impeller wear or excessive clearance. The solution includes adjusting the inlet pressure value, obstacles, replacing the impeller, or adjusting the clearance.
Excessive noise: It may be caused by improper installation of the fan, damaged bearings, or poor lubrication. The solution includes reinstalling the fan, replacing bearings, or strengthening lubrication.
5、 Brand and Price
There are multiple brands of Roots blowers specifically designed for meltblown fabrics in the market, such as Changsheng. In terms of price, there are differences in the prices of fans of different brands, models, and performance parameters. Specific prices need to be inquired and compared based on actual needs.
In summary, the specialized Roots blower for meltblown fabrics is one of the important equipment on the meltblown fabric production line, which has the characteristics of high pressure output, controllable flow rate, high purity, and stable operation. During the selection, adjustment, and use process, attention should be paid to relevant issues and solutions to ensure the normal operation of the fan and the production quality of the meltblown fabric.
