The reaction kettle melt pump is a highly efficient transfer equipment specifically designed for liquids with high viscosity and no particulate impurities. It finds extensive application in industries such as resins and chemical fibers. Below is a detailed introduction to the reaction kettle melt pump:
I. Application Areas
The reaction kettle melt pump is primarily utilized for the transportation, pressurization, and metering of high-temperature, high-viscosity polymer melts. In industries like resins and chemical fibers, it is typically installed at the bottom of the reaction kettle, serving as a discharge pump. Additionally, it can function as a booster pump for melt spinning and as an auxiliary device on extruders or injection molding machines, enhancing production efficiency and product quality.
II. Characteristics
High-Pressure and High-Viscosity Handling Capability: The reaction kettle melt pump boasts exceptional output pressure and the ability to handle high-viscosity media, enabling stable transportation of high-viscosity melts.
Excellent Self-Priming Performance: Even under vacuum conditions, the pump operates stably, making it suitable for polymer material transportation and pressurization in vacuum reaction environments.
Wide Flow Range: By adjusting the pump's rotation speed, a broad range of flow rates can be achieved to meet various production requirements.
High Temperature, Wear, and Corrosion Resistance: The pump body material is carefully selected for its outstanding resistance to high temperatures, wear, and corrosion, ensuring stable operation in harsh environments.
Superior Sealing Performance: The melt pump offers multiple sealing options, including packing seals, mechanical seals, or a combination of both, effectively preventing leakage.
III. Working Principle
The reaction kettle melt pump operates based on the design of a positive displacement pump. Through the precise meshing of the driving and driven gears, changes in the working volume are achieved, thereby completing the transfer of the melt. As the gears rotate in the specified direction, the melt enters the tooth spaces of the two gears in the feed area. As the gears continue to rotate, the melt is carried into the delivery area from both sides. The re-meshing of the gears forces the melt out of the tooth spaces and into the discharge pipeline.
IV. Key Parameters
Viscosity of Conveyed Medium: From low viscosity at 0.0001Pa•s to high viscosity up to 40,000,000cps (or 1–30,000Pas, with variations depending on sources).
Suction Pressure: From vacuum to 4MPa.
Discharge Pressure: From 0 to 35MPa (or 0–276Bar, with variations depending on sources).
Operating Temperature: Less than 350℃.
Heating Methods: Jacket heating, channel heating, electric heating, etc.
V. Installation and Maintenance
Installation:
The melt pump should be installed on a flat, sturdy, and rigid base to ensure that the pump shaft rotates in the indicated direction during operation.
When tightening screws during installation, even force should be applied to avoid causing additional stress that could shorten the shaft's lifespan.
Maintenance:
Regular cleaning and maintenance of the melt pump are essential, including checking the sealing condition and bearing wear.
During disassembly and reassembly, careful handling is crucial to prevent damage to components.
In conclusion, the reaction kettle melt pump is a highly efficient and stable transfer equipment that excels in the transportation and pressurization of high-viscosity melts. With proper installation and maintenance, it can ensure long-term stable operation and optimal performance.
Email: info@battemachinery.com
WhatsApp: +86 158 38331071
