Phosphorus fertilizer is a necessary crop. There are only three basic resources of phosphorus, nitrogen and potassium fertilizer, and it is easy to be processed into chemical fertilizer in dangerous and toxic heavy metals. At present, there are two main raw materials for the production and processing of phosphate fertilizer, one is phosphate and the other is sulphuric acid. Combined with the actual situation, the use planning of vacuum system in phosphate fertilizer enterprises hopes to solve the heavy metal pollution of quality and safety environment and crops.
As the raw material of phosphate fertilizer production sulfuric acid and the heavy metals from phosphate rock enter into the soil directly through the way of fertilizer, the accumulation of heavy metals in the soil increases, resulting in the content of heavy metals in crops exceeding the standard, causing food safety and health problems.
The application of vacuum system in phosphate fertilizer enterprises is actually vacuum filtration.
The central vacuum station is a complete set of automatic vacuum degree control system which takes the rotary vacuum pump as the vacuum obtaining equipment and the vacuum tank as the vacuum storage equipment. In the case of frequent use of vacuum source and less air volume needed, the system greatly saves energy and effectively improves the service life of vacuum pump compared with direct use of vacuum pump. At present, this kind of pump has been widely used in vacuum packaging of all kinds of food, vacuum molding of rubber and plastic industry, paper transportation of printing industry, vacuum impregnation and leak proof of all kinds of castings, vacuum fixture, vacuum drying, vacuum filtration, vacuum dynamic test and vacuum suction of hospital operating room, etc. all kinds of vacuum treatment within the vacuum range that this type of pump can achieve.
vacuum system advantages:
1. When a vacuum source is needed, the required vacuum degree can be achieved in a very short time.
2. The vacuum source is more stable and sufficient.
3. One system can be used by multiple workbenches at the same time without affecting the operation of different units.
4. When the vacuum source stored in the pressure vessel is sufficient, the vacuum pump can stop working / stop working in turn, extending the rest time of the pump, so as to reduce the loss of the pump, parts and oil, reduce the cost of operation and maintenance, and also reduce the noise in the workplace.
5. Easy to operate and master.
The special vacuum system of phosphate fertilizer enterprises can be suspended in the heavy metal of phosphate fertilizer. The direct route of removing heavy metal and sulfuric acid phosphate raw materials into the soil through fertilizer leads to the increase of the content of heavy metal in the accumulated soil, which leads to the content of heavy metal crops exceeding the standard, causing unsafe health food and endangering people’s health.
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