In the fields of chemical engineering, pharmaceuticals, new materials, etc., the drying treatment of high viscosity materials such as paste and paste faces the challenges of poor fluidity and easy wall adhesion,Single cone spiral belt vacuum dryerWith the synergistic effect of spiral stirring and cone structure, it has become a specialized equipment for drying viscous materials, widely used in production scenarios that require drying and avoid material retention. ​

In the field of fine chemicals, the single cone spiral belt vacuum dryer is a powerful assistant for drying high viscosity intermediates. When processing epoxy resin adhesive, the material viscosity can reach up to 10000cP. The equipment continuously cuts and flips the material through a built-in screw stirrer (speed 5-30r/min), combined with a scraping design of the conical wall, to prevent wall sticking and scaling. The drying time is shortened from 8 hours in traditional rake drying to 4 hours. In the drying of pigment paste, the screw belt stirring allows the material to fully contact the heat carrier (interlayer hot water or thermal oil), reducing the moisture content to below 0.5%, and the pigment particles are evenly dispersed, resulting in a 30% increase in the grinding efficiency of the pigment paste. Its vacuum system can quickly remove solvent vapor, with a recycling rate of over 95%, reducing environmental treatment costs. ​

In the processing of paste like materials in the pharmaceutical industry, this equipment demonstrates advantages. When drying traditional Chinese medicine extract, the spiral belt is used to stir and crush large pieces of extract, increasing the drying area. Combined with a vacuum environment below 60 ℃, the volatile oil components are effectively retained, and the content of active ingredients in the finished product is increased by 15% compared to oven drying. When processing the bacterial paste for biopharmaceuticals, gentle stirring is used to avoid cell breakage, and the bacterial activity retention rate reaches 85%, providing high-quality raw materials for subsequent extraction processes. The cone angle of the equipment (usually 60-90 °) is designed to allow the material to move towards the discharge port under the action of gravity and screw thrust, with a residual amount of ≤ 0.1%, reducing material waste. ​

In the preparation of new materials, the single cone spiral belt vacuum dryer assists in the production of high-performance materials. When drying the precursor of lithium battery cathode material (nickel cobalt manganese hydroxide), precise control of vacuum degree (-0.092MPa) and temperature (120 ℃) is used to reduce the moisture content of the material to below 0.1%, avoiding component segregation caused by high temperature, and increasing the battery cycle life by more than 50 times. When processing silicone rubber, screw stirring can complete preliminary mixing of materials during the drying process, eliminating the need for subsequent kneading steps and increasing production efficiency by 25%. Its adjustable screw clearance (0.5-2mm) adapts to materials of different particle sizes, ensuring mixing efficiency while reducing equipment wear, with a service life of over 8 years. ​

In addition, in the treatment of environmentally friendly sludge, the single cone spiral belt vacuum dryer can dry municipal sludge or industrial sludge from a moisture content of 80% to below 30%. The spiral belt agitation prevents sludge agglomeration, and the dried sludge can be used as fuel or landfill treatment, with a capacity reduction rate of up to 60%, reducing disposal costs. The sealing design of the equipment avoids the leakage of odorous gases and complies with environmental emission standards.