Paraffin wax forming line
Introduction
At present, there are two types of wax injection methods for plate wax forming machines at home and abroad, one is volumetric wax injection, and the other is mass flow meter and metering pump wax injection. Volumetric wax injection, flow meters, and metering pumps are all converted into mass through volume measurement. The paraffin machines in major refineries both domestically and internationally are flow meters and metering pumps. Cylinder wax injection has been adopted in China in recent years, with a simple process and low manufacturing cost. However, it is clumsy, inconvenient to adjust, and difficult to operate, so large enterprises generally do not choose it. The advantage of metering pump wax injection is that the mass of each group can be adjusted separately, and the mass of each individual block can be adjusted on the computer interface, so the mass of each group of wax is similar. To achieve the closest quality of each wax block, high wax injection accuracy, easy operation, and low failure rate, this paraffin forming machine adopts the method of metering pump wax injection.
Our Products
The phenomenon of chain deviation occurs from time to time, often causing the plate to get stuck, which is labor-intensive and prone to many faults. After years of research and experimentation by our technical personnel, we have cancelled the one-way bearing and replaced it with a more user-friendly device that will never deviate. Currently, the device has been running smoothly, durable, and has a long service life for 10 years, receiving high praise from customers.
The equipment and components we provide are brand new, complete, technologically advanced, reliable in quality, reasonably arranged, and have been proven to be mature products through practice. Key components and control elements are sourced from renowned European and American manufacturers, ensuring good interchangeability of parts used in equipment of the same model.
Technological process
1. Dewaxing and de oiling is a combined process that produces both dewaxed oil and paraffin wax in a single unit. Solvent dewaxing is the process of separating wax and oil by reducing the temperature in the presence of a selective solvent to form solid crystals of wax. The solvent dissolves the oil and is insoluble or sparingly soluble in the wax, resulting in a solid-liquid phase that is filtered to achieve wax oil separation. In addition to selective dissolution, solvents also play a role in reducing oil viscosity and creating favorable conditions for crystal formation and filtration separation in the system. The main factors affecting solvent dewaxing and oil removal processes are solvent properties and composition. The amount of solvent added. Method of solvent addition. Cooling rate, solvent moisture content, etc.
2. During the production process, the solvents in the filtrate and wax need to be recycled and reused. Both filtrate and wax solvent recovery systems use double effect or triple effect evaporation. During the evaporation process, both low-pressure and high-pressure towers need to be operated simultaneously before entering flash evaporation and stripping.
3. After a period of solvent circulation, the water content inside increases, and it needs to enter the drying tower system to remove water and dry the solvent.
4. The cooling and crystallization process of the raw material solution in the solvent dewaxing and oil removal unit is completed in a horizontal casing crystallizer. The raw material solution gradually cools down and forms crystals as it flows forward along a tube with a rotating scraper inside.
5. The crystallized raw material solution enters the vacuum filter, which sucks out the solvent and oil through the vacuum pump. The wax is adsorbed on the drum of the vacuum filter and scraped off by rotation. As the wax and oil contain solvents, they need to be extracted from the extraction tower before entering.
6. Wax refining and molding, after the solvent inside the wax is extracted, it needs to enter a mixing tank, be refined with clay, and then enter an automatic slag removal filter to separate the wax and clay, obtaining refined wax. The refined wax then enters the molding machine again. There are two types of molding machines, one is the granule wax molding machine, and the other is the wax block molding machine. Enterprises with high output generally choose both granule wax molding machines and wax block molding machines.
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