Vacuum pumps are especially suitable for recycling various waste oils, such as engine oil, engine oil, hydraulic oil, lubricating oil, transformer oil, etc. Vacuum pump adopts vacuum distillation technology. Compared with acid purification technology and flocculation filtration technology, special condenser technology has higher recovery rate, higher quality of processed oil and more important. Processing costs will be lower.
Reducing solid waste belongs to the front end of material production process. To solve the problem of waste oil disposal, it is necessary to start from the comprehensive development of resources and the comprehensive application of material information in production process. Adopting reasonable technology and formulating reasonable resource consumption quota, etc. Vacuum pump plays an important role in waste oil treatment. The spike quality and accuracy of waste oil flow directly affect the quality and yield of final base oil. Waste oil refers to those oils that are purified or synthesized from crude oil and contaminated by physical or chemical impurities after use. In short, waste oil, as its name implies, is the oil that has been used from oil or synthetic oil. During normal use, impurities such as dust, metal scraps, water or chemicals may be mixed with oil. Oils already used as lubricants, hydraulic press fluids, heat transfer fluids, buoyancy fluids and other oils for similar purposes can be considered waste oils.
Types and Sources of Pollutants in Waste Oil:
There are many kinds of pollutants in oil, such as solid particles, water, air, chemical substances and microorganisms. In addition, static electricity, magnetic field, thermal energy and radiation in the system are also a kind of pollutants in the form of energy.
The main sources of pollutants are:
1. The residual pollutants in the process of system and component processing, assembly, storage and transportation, such as metal chips, welding slag, moulding sand, dust Egyptian cleaning solvent, etc.
2. The wear debris produced by the wear and tear of components, the rust and exfoliate in the pipeline, the particles and colloidal substances produced by the oxidation and decomposition of oil, etc.
3. Contaminants from outside during system operation, such as contaminants from piston rod seal of hydraulic cylinder and breathing hole of oil tank, and contaminants brought in during oil injection and maintenance, etc.
4. Various solvents, surfactants, residual chemical impurities in the process of oil extraction, and harmful chemicals produced by oil decomposition or additives, etc.
In the waste lubricating oil recycling system, the waste oil supply part of the treatment device is mainly powered by a vacuum pump. Pump is one of the main pumps to obtain low and medium vacuum pumps, which uses external energy to transport fluid. Vacuum pump can be divided into oil seal pump and dry pump. According to the required vacuum degree, single-stage pump and double-stage pump can be used, of which double-stage pump is more widely used. It has the advantages of reliable performance, high limit vacuum, convenient use, simple installation and maintenance, and has a double safety device for automatic oil return prevention.
Vacuum Pump in Waste Oil Treatment-Waste Oil Regeneration
According to the types of pollutants in oil and the requirements for oil purification, the following different purification methods can be used: mechanical filtration, magnetic filtration, centrifugal separation, sedimentation separation, electrostatic separation, vacuum dehydration (air), absorption and adsorption method, coalescence method and so on. Mechanical filtration is currently the most widely used method of oil purification, which can effectively remove all kinds of solid particles in oil, but it can not remove water and colloidal pollutants in oil.
Electrostatic oil purification method has better purification effect for small particles and colloidal pollutants in oil, but the oil purification rate is low, and the water content in oil is strictly limited. Vacuum pump can not only effectively remove dissolved water in oil, but also remove air and volatile harmful substances in oil. Therefore, in order to achieve the purpose of oil purification, it is often necessary to combine various purification methods, complement each other, and give full play to the advantages of various purification methods.
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