Cellulose is a macromolecular polysaccharide composed of glucose. It is insoluble in water and general organic solvents. It is the main component of plant cell wall. Cellulose is the natural world in the distribution of zui wide, zui content of a polysaccharide, accounting for more than 50% of the carbon content of the plant world. Cotton cellulose content is close to 100%, for the natural zui pure cellulose source. General wood, cellulose accounted for 40 ~ 50%, there are 10 ~ 30% of hemicellulose and 20 ~ 30% of lignin.
Cellulose is the earth's zui old, zui rich natural polymer, is inexhaustible, human zui valuable natural renewable resources. Cellulose chemistry and industry began more than one hundred and sixty years ago, is the birth of polymer chemistry and the development of the period of the main object of research, cellulose and its derivatives of the research results for the creation of polymer physics and chemical disciplines, development and enrichment of a significant contribution.
Cellulose dryer working principle:
Flash dryer is a hot air tangent into the bottom of the dryer, driven by the stirrer to form a strong rotating wind field. Material from the spiral feeder into the dryer, under the strong action of high-speed rotating stirring paddle, the material by the impact, friction and shear force of the role of the dispersion, lumpy materials quickly crushed, and the full contact with the hot air, heat, drying. The dried material is carried by the airflow into the dust collection system for collection and processing, in line with the environmental requirements of the dust content of ≤ 50mg/m3 exhaust by the induced draft fan, to complete the entire drying process.
Cellulose dryer equipment features:
1. High circumferential gas velocity inside the drying chamber, short material residence time, effectively preventing the material from sticking to the wall and heat-sensitive material deterioration, and can be dried into a uniform powdery products, eliminating the need for crushing, screening and other processes.
2. The drying chamber is equipped with grading ring and cyclone piece, the fineness of material and final water can be adjusted. Special wind separating device reduces the resistance of the equipment and effectively improves the drying uniformity of the material.
3. The bottom of the dryer is equipped with special cooling device and air pressure sealing device, which avoids the deterioration of materials in the high temperature area at the bottom.
4. It can effectively control the final moisture and fineness, through the adjustment of charging, hot air temperature and classifier, to ensure that the moisture content and fineness of the products are uniform.
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