| Customization: | Available |
|---|---|
| Warranty: | 12months |
| Condition: | New |
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1.It is suitable for mass production of emulsified diesel and biodiesel.
2.The amount of water added varies depending on the emulsifier, and the upper limit of water addition is 35%.
3. The application of high shear emulsification technology enables microemulsification of diesel, enhances stability, and ensures no stratification over the long term. The equipment is equipped with a main emulsifying tank, an additive addition tank, a metering system, etc.
4. The core technologies are the online circulating three-stage high-shear emulsifying pump and the high-speed emulsifier in the main emulsifying tank. The whole machine has a compact structure and a high degree of operation automation.
I. Emulsified asphalt production process
Depending on the production scale, various specific production conditions and process requirements, there are various forms of emulsion preparation. The typical emulsion preparation is based on water, and emulsifiers, stabilizers and additives all need to be added in the designed proportion. The process of dissolving various additives in water is carried out simultaneously. When the solution in this dissolution tank is used up, production needs to be halted. Therefore, this is an intermittent production process, suitable for smaller-scale production. If continuous production is to be maintained, there must be more than two dissolution tanks to alternately prepare emulsifier solutions.
Various emulsifiers and stabilizers dissolve in water at different rates. To enhance the dissolution efficiency, they can be dissolved in separate tanks. For additives that are difficult to dissolve, such as PVA, the water temperature can be raised and the stirring intensity increased, and then the solution can be mixed in proportion.
Because the temperature of the emulsion used in the emulsification process is relatively low, and the dissolution of the emulsifier requires a higher water temperature to facilitate dissolution, in larger-scale production equipment, the additive is dissolved first, and then the temperature is adjusted with water at a lower temperature to prepare the emulsion.
II. Modified Emulsified Asphalt Production process
Modified emulsified asphalt refers to the emulsion modified asphalt produced when asphalt is first emulsified and then modified, or when both emulsification and modification processes are carried out simultaneously. Its characteristics are: the modifier adopted must be in liquid form; The production process is simple. The modifier can be added to the emulsified asphalt in proportion for stirring, or the modifier can be added to the emulsion in proportion to emulsify the asphalt, and then modified emulsified asphalt can be obtained.
III. Emulsified Modified Asphalt Production process
Emulsified modified asphalt refers to asphalt that is modified first and then emulsified. There are three technical routes for emulsified modified asphalt as follows:
(1) Latex is used as a modifier. After the asphalt is heated and melted, the latex is slowly added while stirring to evaporate the water, resulting in modified asphalt. Then, it is dispersed in the prepared emulsified liquid for emulsification. This form consumes a lot of energy and involves complicated procedures. Modified asphalt is difficult to disperse in emulsions and is no longer used.
(2) Solid modifiers are liquefied by solvents and then added to asphalt for stirring to make modified asphalt, which is then dispersed in the prepared emulsion for emulsification. This form has many process procedures, high costs, certain production risks and environmental pollution. It is rarely adopted now.
(3) Solid thermoplastic elastomer materials are mixed with molten asphalt and then mechanically dispersed to form modified asphalt, which is then dispersed in the prepared emulsion for emulsification. There are two major technological challenges in this form. First, the modifier must be crushed into ultrafine particles. In emulsified modified asphalt, the diameter of the modified asphalt particles in the dispersed phase must be below 5-6 μ m; otherwise, the emulsion will not be stable. Moreover, the modifier is surrounded in the asphalt components, and the particle size of the modifier must be even smaller, which poses certain difficulties in mechanical high-intensity crushing. The second issue is that it is difficult to disperse modified asphalt in emulsions. After modification, the viscosity of asphalt increases. Once mixed with the emulsion, the heat in the modified asphalt rapidly transfers to the emulsion, the temperature drops rapidly, and the viscosity increases rapidly, further increasing the difficulty of high dispersion. However, the emulsified modified asphalt produced in this way has excellent technical and economic performance and broad application prospects.
| Product | The distillation range of the actual boiling point / ºC | The cutting point of the actual boiling point / ºC |
| Gasoline | 40~140 | -- |
| Kerosene | 105~252 | 122.5 |
| Light diesel oil | 196~339 | 224 |
| Heavy diesel | 301~448 | 320 |
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