Automatic complete sets of mechanical, electrical, computer integration system, the system is mainly used in the production of polyethylene film blowing workshop, its function is to distribute in a few hundred meters of more than 10 to do the film workshop in the automatic preparation of the production of raw materials (PE pellets) according to their own formula, and the preparation of raw materials automatically transported to the need of extrusion and blowing film machine.

Two kinds of PVC powder feeding systems, dense phase pneumatic feeding system and thin phase pneumatic feeding system, are introduced. Through the comparison of the two in terms of investment, energy consumption, environmental protection and impact on product quality, it is pointed out that dense phase pneumatic feeding system has more advantages in PVC powder transportation.

Two kinds of PVC powder feeding systems, dense phase pneumatic feeding system and thin phase pneumatic feeding system, are introduced. Through the comparison of the two in terms of investment, energy consumption, environmental protection and impact on product quality, it is pointed out that dense phase pneumatic feeding system has more advantages in PVC powder transportation.

This paper introduces the principle, advantages and disadvantages of various alumina pneumatic feeding technology, and introduces the application of alumina pneumatic feeding technology in the transformation project of an alumina conveying system of Qinghai Branch of China Aluminum Industry.

Pneumatic conveying system transports fly ash in pipeline by means of pressure equipment (positive pressure or negative pressure). The whole pneumatic conveying system is very simple. During operation, only the compressed gas source, the feeding device, the transportation pipeline and the receiver with the function of separating gas from materials are needed, so that automatic control can be realized through the system, and the material conveying capacity can be continuously monitored to monitor the input and output of the factory. The main components are material level gauge and pneumatic actuators, electric air lock, material delivery equipment, dry ash concentration equipment, dust collection equipment, air source equipment, air drying device, ash removal pipeline, storage bottom equipment, etc.

The batching system uses pneumatic conveying and is combined with heat, weighing control, and cold mixers to form a complete PVC batching and mixing production line.Computer-controlled batch cumulative weighting and continuous weighting and mixing measurement control of materials in the flow process are the core.