Antioxidant 1010 is an excellent performance hindered phenolic antioxidant, which plays an extremely important role in the field of polymer materials. It can exert excellent antioxidant performance at a very low addition amount. Usually the addition amount of 0.1%~0.5% in polymer materials can effectively inhibit the oxidative degradation process of the materials and prolong the service life of the materials. It is well compatible with a wide range of polymer materials, such as polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), polyester (PET, PBT) and so on. This enables it to be uniformly dispersed within the material after it is added to the material without precipitation, agglomeration, etc. due to poor compatibility, thus ensuring a uniform antioxidant effect. The global antioxidant 1010 market size has shown a steady growth trend over the past few years, with the compound annual growth rate remaining at a high level. In the next few years, the global antioxidant 1010 market is expected to continue to grow with the economic recovery and the development of various industries.
Increased global environmental awareness and increasingly stringent environmental regulations, prompting companies to increase the development and application of environmentally friendly antioxidants. Antioxidant 1010 itself has low volatility, resistance to extraction and other environmental characteristics, in line with environmental requirements, and in the future development of its production process will also be improved in the direction of more green, environmentally friendly to meet the market demand for environmentally friendly products, thereby promoting the further expansion of its market share. Technological innovation is an important driving force for the development of antioxidant 1010 market. Jinwang R & D antioxidant 1010 vacuum pan dryer to improve product quality and performance, the use of continuous production technology, not only can improve production efficiency, reduce production costs, but also enhance the competitiveness of the product, and further expand market share.
Antioxidant 1010 Vacuum Disc Dryer Process Flow
In the production process of antioxidant 1010, after synthesis, crystallization and other processes, the crude product of antioxidant 1010 contains a certain amount of solvents, such as methanol. Using vacuum disk dryer for drying, the solvent can be removed efficiently at a lower temperature, so that the product reaches the specified water content standard, while ensuring that the quality and performance of the product are not affected.
(1) Feeding
Material preparation: the antioxidant 1010 wet material obtained after pre-synthesis, crystallization and other processes, usually contains a certain amount of organic solvents, such as methanol, etc., it is necessary to carry out pre-treatment first, so that it reaches the state suitable for entry into the vacuum disk dryer, generally require the material to have a certain fluidity and particle size distribution.
Uniform feeding: through the quantitative feeder will antioxidant 1010 wet material evenly added to the top of the vacuum disk dryer on the first layer of drying disk, to ensure that the material is uniformly distributed on the drying disk, in order to facilitate the subsequent drying process.
(2) Drying
Heating medium through: to the multi-layer hollow disk into the heat carrier, such as hot water, low-pressure steam or heat conduction oil, etc., the heat carrier through the heat conduction of heat transfer to the wet material on the drying disk, so that the temperature of the material rises.
Material turning and drying: under the mechanical stirring effect of the similar spade plow-shaped rake leaves, the material in the drying tray along the Archimedes spiral movement trajectory tumbling forward, constantly moving forward plowing, increasing the contact area between the material and the drying tray, so that the material is heated more uniformly. At the same time, due to the dryer is in a vacuum state, the material surface of the steam pressure drops, prompting the material surface moisture in the operating temperature at the boiling point of rapid evaporation vaporization, and by the vacuum pump in a timely manner out of the discharge. The moisture inside the material is constantly to the surface of the infiltration, evaporation, discharge, so as to achieve the purpose of drying.
(3) Process monitoring and parameter adjustment
Temperature monitoring: In the drying process, the temperature of drying disk and material is monitored in real time by temperature sensor and other equipment to ensure that the temperature is controlled within the set range. Generally speaking, the drying temperature of antioxidant 1010 is usually adjustable between 20°℃-160°℃, and the precision of temperature control is usually within ±2℃ to ensure that the quality and performance of the product are not affected.
Vacuum control: Pay close attention to the vacuum degree in the dryer and make appropriate adjustments according to the drying condition of the material and process requirements. Higher vacuum is conducive to reducing the drying temperature of the material and accelerating the drying speed, generally the vacuum can reach -0.09MPa to -0.095MPa or so.
Material residence time control: according to the initial moisture content of the material, the amount of feed, temperature, vacuum and other factors, fine QUE control of the residence time of the material in the dryer, usually drying time in a few hours to tens of hours to ensure that the material to achieve the required moisture content standards, such as the end of the moisture content of ≤ 0.2%.
(4) Discharge
Completion of drying: When the moisture content of antioxidant 1010 material reaches the process requirements, the drying process ends.
Discharge operation: the dried antioxidant 1010 material falls to the bottom of the shell from the ZUI next layer of drying disk, and ZUI is moved to the discharge port by the poop leaf to get the dried antioxidant 1010 product.
(5) Solvent recovery
Condensation recovery: The organic solvent evaporated during the drying process, such as methanol, etc., is pumped out through the vacuum pump and then entered into the condenser for condensation, so that the organic solvent is changed from gaseous state to liquid state for easy recycling.
Solvent collection: the condensed organic solvent flows into the solvent receiving tank for collection, realizing the recycling of organic solvents, which not only reduces the environmental pollution, but also reduces the production cost.
Antioxidant 1010 Vacuum Disc Dryer Performance Characteristics
(1)High drying quality
Low-temperature drying: under the vacuum environment, the drying temperature of the material is relatively low, which can effectively prevent the antioxidant 1010 from deterioration, decomposition or performance degradation due to high temperature to ensure the stability of product quality.
Uniform heating: through the indirect heating of multi-layer hollow disc and the mechanical stirring of similar plowshare-shaped poi leaf, the material can be uniformly heated in the drying disc to avoid the phenomenon of local overheating, thus ensuring that the physical and chemical properties of antioxidant 1010 are not affected, and the consistency of product quality after drying is good.
(2)High thermal efficiency: adopting the heating method of heat conduction, the heat can be fully transferred to the material, compared with the traditional hot air drying and other methods, the heat loss is smaller, the energy utilization rate is high, which can significantly save the energy cost and improve the production efficiency.
(3)Good operating environment
Strong airtightness: the whole equipment is airtight, which effectively prevents outside air from entering the drying system and avoids oxidizing the antioxidant 1010 by contacting with oxygen in the drying process, and at the same time, it also reduces the leakage of dust, improves the working environment, and protects the physical health of the operating personnel.
Solvent recovery: The organic solvent vapor generated in the drying process can be pumped out by vacuum pump and recovered to the solvent receiving tank after condensing by condenser, which realizes the recycling of solvent and not only reduces the cost of production, but also reduces the pollution to the environment.
(4)High degree of automation: Equipped with advanced control system, it can carry out fine QUE automatic control and real-time monitoring of parameters such as drying temperature, vacuum degree, feeding volume, stirring speed, etc. The operation is simple and convenient, which reduces manual intervention, improves the stability of the production process and the reliability of the product quality, and at the same time reduces the labor intensity.
(5)Wide material adaptability: it is suitable for various forms of antioxidant 1010 materials, such as powder, granular and fibrous, etc., and can meet different production processes and product requirements.
(6)Small footprint: compact structure, reasonable design, multi-layer disc layout and efficient drying method makes the equipment can complete a large number of materials drying treatment in a small space, saving the space of the plant and reducing the cost of infrastructure investment.
(7) Stable and reliable operation: the key components of the equipment, such as heating disc, stirring device, vacuum pump, etc. are made of high-quality materials and advanced manufacturing process, with good abrasion resistance, corrosion resistance and sealing, and can be operated stably for a long time to reduce the number of equipment failures and repairs, and to improve the continuity of production.
(8) Convenient cleaning and maintenance: the internal structure of the equipment is relatively simple, without complex dead ends and gaps, easy to clean and maintain, can effectively prevent material residues and cross-contamination, to ensure that the sanitary condition of the equipment meets the production requirements.
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