Coal asphalt manufacturer Shen Huanhuan.
Ash and moisture content of coal pitch
Coal pitch is a widely used chemical raw material, and its quality index has an important impact on its application value. Among them, ash content and moisture are two important quality indicators of coal asphalt, which have a significant impact on its performance and application. This article will conduct an in-depth review of the ash and moisture content of coal pitch, aiming to provide reference for relevant practitioners.
1. Ash content of coal pitch.
The ash content of coal pitch refers to the content of non-organic matter in coal pitch, usually in the form of residues. The ash content of coal pitch mainly comes from the inorganic substances contained in coal raw materials, such as minerals. In the process of high-temperature combustion, these inorganic substances cannot be completely burned and will remain in the coal pitch to form ash.
The ash content of coal pitch has a significant impact on its properties and applications. On the one hand, too high ash content can lead to a decrease in the stability of coal pitch, making it more susceptible to aging, discoloration and impurities. On the other hand, too low ash content may lead to a decrease in the viscosity and softening point of coal asphalt, which will affect its application effect.
Therefore, it is crucial for the production and application of coal asphalt to control its ash content. Generally speaking, the ash content of coal pitch should be controlled at a low level to meet the needs of different application scenarios. Specifically, according to different application fields and uses, the ash content of coal pitch should meet the corresponding national standards or industry standards.
Second, the moisture of coal pitch.
The moisture content of coal pitch refers to the content of free water and bound water contained in coal pitch. Free water refers to the water that is mechanically entrained in the coal pitch, while bound water is the water that is bonded together with certain components in the coal pitch through chemical bonding.
The moisture content of coal pitch also has an important impact on its properties and applications. On the one hand, too much moisture can lead to a decrease in the viscosity of coal pitch, making it more susceptible to leakage and dripping, which will affect its storage and use effectiveness. On the other hand, too little moisture can lead to poor flow of coal pitch, making it difficult to process and apply.
Therefore, it is also crucial for the production and application of coal pitch to control its moisture content. Generally speaking, the moisture content of coal pitch should be controlled at a low level to meet the needs of different application scenarios. Specifically, according to different application fields and uses, the moisture content of coal pitch should meet the corresponding national standards or industry standards.
3. How to reduce the ash and moisture content of coal asphalt.
1.Selection of high-quality raw materials: The selection of coal raw materials with low ash and moisture content can effectively reduce the ash and moisture content of coal pitch in the production process. In addition, strengthening the storage and transportation management of raw materials to avoid the influence of unfavorable factors such as rain and humidity can also effectively reduce the ash and moisture content of coal pitch.
2.Optimize the production process: By optimizing the production process of coal asphalt, such as controlling the reaction temperature, reaction pressure, catalyst selection, etc., the ash and moisture content of coal asphalt can be effectively reduced. In addition, the use of advanced dehydration and deashing technology can also further improve the quality index of coal asphalt.
3.Strengthen quality inspection and control: Strengthen the quality inspection and control of coal asphalt, regularly detect and analyze the ash and moisture content of coal asphalt, and find and deal with unqualified products in time, which can effectively reduce the ash and moisture content of coal asphalt and improve the stability and consistency of products.
4.Adopt appropriate storage and transportation methods: During storage and transportation, the environment should be kept dry and avoid the influence of unfavorable factors such as sun and rain. In addition, storage and transportation equipment should be regularly inspected and maintained to ensure the tightness and integrity of the equipment to prevent the infiltration of moisture and the mixing of ash.
In short, it is of great significance to reduce the ash and moisture content of coal pitch to improve its quality index, stability and consistency. Relevant practitioners should strengthen quality inspection and control, select high-quality raw materials, optimize production processes, and adopt appropriate storage and transportation methods to ensure that the quality of coal asphalt meets the relevant standards and requirements.