Home page

Application of Rotary Vane Vacuum Pump in Paper Industry

2022-01-10

The paper industry is one of the basic industries in my country. The number of domestic pulp and paper enterprises is large and widely distributed. The transmission system of the old paper machine mostly uses a DC motor to drive each transmission roller shaft, which can achieve stepless speed regulation, but due to carbon The presence of brushes makes maintenance rather cumbersome. At present, vacuum pumps on the market are widely used in metallurgy, chemical industry, food, electronic coating and other industries. However, for paper-making vacuum pumps, due to the large vibration caused by the work of the vacuum pump during use, the quality of the working environment is affected; and During installation, it is unfavorable for installation, causing inconvenience in operation and reducing installation efficiency. Therefore, in view of the above problems, a special vacuum pump for papermaking is proposed. The rotary vane vacuum pump has the advantages of fast pumping speed, small volume, light weight, low noise, convenient maintenance, and high vacuum degree, which meets the requirements of vacuum pumps for papermaking.

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

1. According to the energy consumption characteristics of the rotary vane vacuum pump, the appropriate type of rotary vane vacuum pump can be selected according to different vacuum degrees, which can not only achieve satisfactory energy-saving effect, but also improve the vacuum degree to meet the matching 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 before the air outlet during use. The sealing water can be recycled water without hard impurities, which acts as a water sealing gap and cooling the pump body. Improve the working performance of the vacuum pump, but the supplementary sealing water should not be excessive, otherwise the power consumption of the vacuum pump will be increased.

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

1. The vacuum pump for papermaking has a simple structure and is easy to operate. The motor is supported by the support plate, and the design of the spring is conducive to reducing the vibration frequency of the motor during operation, reducing noise, and greatly improving the quality of the operator's working environment. , reducing noise pollution;

2. The vacuum pump for papermaking is conducive to the installation of the vacuum pump through the limit plate, and the movement of the limit plate is conducive to the installation of the vacuum pump in different positions, which improves the convenience of operation, reduces the difficulty of installation, and improves the work efficiency.

The blister machine is a machine that absorbs the heated and plasticized PVC, PE, PP, PET, HIPS and other thermoplastic plastic coils into various shapes of packaging boxes, boxes and other products. Using the vacuum suction generated by the vacuum pump, the heated and softened PVC, PET and other thermoplastic plastic sheets are blistered into various shapes of vacuum covers, blister trays, blister shells, etc.

2022-01-10

Precautions for vacuum pump disassembly and cleaning for vacuum pump maintenance

A vacuum pump is a device that uses various methods to generate, improve and maintain a vacuum in a closed space. A vacuum pump can be defined as a device or device that uses mechanical, physical, chemical or physical-chemical methods to pump the container to obtain a vacuum. Any pump that uses mechanical motion (rolling or sliding) to obtain vacuum is called a mechanical vacuum pump. After a period of use, the vacuum pump needs maintenance, and cleaning the vacuum pump is one of the things that needs to be done. Some vacuum pump users ask a question, what are the precautions for vacuum pump disassembly and cleaning for vacuum pump maintenance?

2022-01-10

Features of vacuum pump

(1) Larger pumping speed in a wider pressure range;(2) The rotor has good geometric symmetry, so the vibration is small and the operation is stable. There are gaps between the rotors and between the rotors and the casing, no lubrication is required, and the friction loss is small, which can greatly reduce the driving power, so that a higher speed can be achieved;(3) The pump cavity does not need to be sealed and lubricated with oil, which can reduce the pollution of oil vapor to the vacuum system; (4) There is no compression and no exhaust valve in the pump chamber. Simple and compact structure, insensitive to dust and water vapor in the pumped gas; (5) The compression ratio is low, and the effect of hydrogen pumping is poor; (6) The surface of the rotor is a curved cylinder with a complex shape, which is difficult to process and inspect.

2022-01-10