top notch bitumen reduces environmental pollution due to oil evaporation in soluble bitumen or when it is heated (discharged, loaded and dispersed). More reasonable price compared to soluble bitumen due to the use of water instead of oil, no need to heat during unloading, loading and distribution. Therefore, our collection, which is one of the Top notch bitumen manufacturers, has tried to use high quality raw materials in its production.
Is bitumen environmentally friendly?
Bitumen has applications such as sealing, adhesion between layers, protection against weathering and corrosion, and maintenance and repair of asphalt, concrete and metal surfaces, which can be said to be environmentally friendly. For this purpose, the quality characteristics of bitumen should be improved and liquefied for use. In the past, bitumen lubrication was performed by combining different types of petroleum solvents (such as kerosene) and was offered as soluble bitumen or MC and has many environmental, economic and It is a technique that has been replaced by the production of emulsion bitumen with the introduction of water lubrication technology.
Bitumen or asphalt is solid at normal temperatures. It is adhesive on asphalt surfaces and to mix sand and gravel, it must be softened into plastic. The softening process of bitumen can be done using heat, making hot asphalt or using solvents, a cold mix. The product of the cold mixture hardens or hardens after evaporation or dispersion of solvents in the soil, and the hot mixture hardens as it cools. Most sidewalk projects in the United States use hot asphalt because it can be compacted if traffic on the surface accelerates faster.
Temperature ignition best quality bitumen If the bitumen reaches that temperature, the gases emitted from it ignite as the flame approaches and a flame forms on its surface. The maximum temperature at which bitumen can be heated in the workshop is limited to the degree of ignition. We know that the solvent of bitumen is carbon tetrachloride and carbon sulfur. Therefore, if we dissolve a sample of bitumen in any of these materials, its impurities remain, and from there we can determine the degree of purity of the bitumen. The degree of purity is: (weight of bitumen sample) ÷ [(weight of impurity) – (weight of bitumen)
The purpose of this standard is to test the softening point of bitumens that soften at a temperature between 30 and 157 degrees Celsius. Distilled and for bitumen or softening point above 80 degrees Celsius, the device and test piece should be placed in glycerin or ethylene glycol according to the recommended test conditions.
Manufacturing process of bitumen
To produce bitumen, two processes are used, discontinuous and continuous, which is how to do each of the following.
Discontinuous Batch Process
In this process, the aeration tower is filled with a certain volume of feed and after blowing air with predetermined conditions (reaction temperature, time and amount of feed) and the product reaches the desired specifications, the tower is emptied and its contents in tanks they enter .
- The main components of the aeration unit
- In the discontinuous process, the main components of aeration are:
- Preheater preheater
- Blower or Compressor
- Oxidizer Tower
- A system for collecting and burning vapors
Continuous process
In this process, feed with a certain amount and controllable with a predetermined temperature enters the aeration tower continuously and leaves the aeration tower after performing aeration operations under constant operating conditions. This method of preparing bitumen, which is used in refineries, is considered due to the following advantages.
- –Reduction of pollutant vapors.
- Reduce equipment and maintenance costs.
- –Increase efficiency and amount of production per unit time.
- –Reduction of heat load of edible preheaters.
- – Ease of control operation and process due to its continuous nature.
- Reduced air consumption and shortened aeration time due to optimal use of blown air.
It should be noted that aeration is possible in horizontal and vertical towers, but due to the higher efficiency of vertical towers, they are preferred. For more information about bitumen suppliers uk visit our website.
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