The paper industry is one of the basic industries in China. The number of domestic pulp and paper enterprises is large and widely distributed. The drive system of the old paper machine mostly adopts the drive mode of DC motor driving each drive roller shaft, which can achieve stepless speed regulation. However, due to the existence of carbon brushes, maintenance is quite troublesome. At present, vacuum pumps on the market are widely used in metallurgy, chemical industry, food, electronic coating and other industries. However, for vacuum pumps used in paper making, the work of vacuum pumps may cause large vibration during use, which affects the quality of the working environment; In addition, the installation is not conducive to the installation, causing inconvenience in operation and reducing the installation efficiency. Therefore, a special vacuum pump for paper making is proposed to solve the above problems. The rotary vane vacuum pump has the advantages of fast pumping speed, small volume, light weight, low noise, convenient maintenance, high vacuum degree, and meets the requirements of the vacuum pump for paper making. Next, I will introduce the application of the lower rotary vane vacuum pump in the paper industry.

In order to meet the supporting requirements of modern paper industry and achieve satisfactory use effect and energy-saving advantages, the following points should be paid attention to in the use of rotary vane vacuum pump:

1. According to the energy consumption characteristics of the rotary vane vacuum pump, select the appropriate type of rotary vane vacuum pump according to different vacuum degrees, which can not only achieve satisfactory energy-saving effect, but also improve the vacuum degree, meeting the supporting requirements of small and medium-sized paper machines.

2. For the rotary vane vacuum pump used in the paper industry, a small amount of sealing water should be added in front of the air extraction port during use. The sealing water can be recycled water without hard impurities, which plays the role of water seal clearance and cooling the pump body, and can improve the working performance of the vacuum pump. However, the additional sealing water should not be excessive, otherwise it will increase the power consumption of the vacuum pump.

The beneficial effects of the application of rotary vane vacuum pump in the paper industry are:

1. The vacuum pump for paper making is simple in structure and easy to operate. The motor is supported by a support plate, and the design of a spring is conducive to reducing the vibration frequency of the motor during operation, reducing noise, greatly improving the quality of the operating environment for operators, and reducing noise pollution;

2. The vacuum pump for paper making is advantageous to the installation of the vacuum pump through the limit plate, and the movement of the limit plate is advantageous to the installation of the vacuum pump at different positions, which improves the convenience of operation, reduces the difficulty of installation, and improves the work efficiency.