Melt Pump
- melt pump for plastic extrusion
- Polymer Reaction Kettle pump
- gear pump rubber extruder
- melt pumps for extrusion
- melt pump for pvc extrusion
- ZB double shaft drive melt pump
- Explanation of terms for melt pump d
- ZB-X Series Chemical pump
- PID Control System for extrusion
- PLC Control System for extruder
- ZB-U series gear metering spinning p
- ZB-E series pressurized melt pump fo
- ZB-H series high temperature and hig
- ZB-R series gear melt pump for rubbe
- ZB-K series polymer melt pump for re
- ZB-D series extruding pump for polym
- ZB-F series melt pump for reaction k
- ZB-B series dosing melt pump for hig
- ZB-C series plastic melt pump
Screen Changer
- screen changer polymer filter
- slide plate screen changer
- pillar screen changer
- continuous screen changer
- Single plate hydraulic screen change
- plastic extrusion screen changer
- screen melt filter for extrusion pla
- Manual control screen changer
- Double plate continuous hydraulic sc
- Automatic mesh belt continuous scree
- Double piston four screen cavities c
- Single plate double screen cavities
- Single piston double screen cavities
- Double piston four screen cavities b
- Double piston double screen cavities
Feeding System
- force feeder extruder
- continuous feeding system
- Liquid loss in weight feeder
- Volumetric Feeder
- Multi-component loss in weight feede
- Micro loss in weight metering feeder
- Single screw gravimetric dosing feed
- Twin screw loss in weight metering f
melt blown progress
contact us
- Batte Machinery Zhengzhou Co., Ltd.
- E-mail: info@battemachinery.com
- whatsapp: +86 158 38331071
- Tel: +86 371 67991755
- After-sales Tel: +86 371 67997677 / 67997877
- Address:No.11 Changchun Road, High-tech Zone, Zhengzhou, China.
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Troubleshooting of Melt Pump in Polyester Production Line
As the key equipment in the continuous polyvinegar production line, the stable and long-term operation of the melt pump is of great significance to the continuous stability of the whole production line and the improvement of production efficiency and economic efficiency. Melt pumps are mainly used for melt transportation, pressurization and metering in synthetic resin polymerization units. It has the characteristics of compact structure, reliable operation and low energy consumption.
Since the installation and operation of three melt pumps of PET and PBT devices, the pressure sensor of pump head has not been displayed accurately, and the adjustment of pressure only depends on the experience of maintenance personnel. The journal and packing of the melt pump in our unit are dynamic seals, which are easy to leak. They play a key role in packing seal pump and pressure regulating valve. Generally, if the pressure is higher or lower than the range of parameters, the normal operation of the melt pump will be affected. If the first line of the pressure regulating valve comes out, the silicone oil of the lubricating sealing filler or the outside air will enter the solution of the melt pump, and there is air hammer sound in the gear pump.
The hazards caused by air entering into the process system are as follows: first, the swing of the strip will even break the wire, which will affect the appearance quality of the slice; second, if the strip breaks, the stacking of the diversion tank of the granulator will occur if the operator does not clean it up in time; third, the filler lubricant (silicone oil) will all enter the slurry. If the pressure regulating valve is basically closed (when the pump pressure is higher than 0.5 mpa, the second line is even), the solution in the pump body will leak through the labyrinth ring and packing layer, that is to say, the melt will leak out. Slurry will flow to the outside world through labyrinth rings, fillers and sealing interval loops. The greatest harm is to block the lubricant (silicone oil) guide groove and guide hole on the sealing interval ring. Slurry will solidify on the sealing interval ring, and the outside lubricant (silicone oil) will not reach the surface between the filler and the bush. Long time without lubricant (silicone oil) lubrication. Long time dry friction between sleeve and sealing filler will lose the inherent characteristics of filler, will lose the role of friction seal with sleeve. The closer sliding bearing is to mixed friction, even dry friction, the more serious damage to the shaft and bearing surface.
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