Today, polymer melt gear pumps have been widely used in chemical fiber, film, profile, pipe, sheet, cable, composite extrusion, granulation and other production lines, and the processable materials cover most polymer materials, such as: PE, PC, PP, PVC, HIPS, PS, PET, PUR, fluoropolymers, polysilicon, polyester, thermoplastic elastomers, rubber and thermal adhesives, etc. Zhengzhou batte is a professional supplier of melt gear pumps, providing large-scale melt discharge pumps and melt booster pumps (8000cc/r). The development of melt gear pump mainly includes the following five aspects.
1. High pressure
High pressure is required by the system, and it is also a problem that must be solved for the melt gear pump to compete with other gear pumps. Since the gear pump is limited by its own structure, it is very difficult to further increase the working pressure, and a new structure must be developed. gear pump. . In this regard, multi-gear gear pumps will have great advantages, especially balanced compound gear pumps.
2. Low flow pulsation
Flow pulsation will cause pressure pulsation, which will cause the system to produce vibration and noise, which is inconsistent with the requirements of melt delivery. The use of balanced compound gear pumps is a trend to reduce flow pulsation.
3. Low noise
The noise of the melt gear pump is mainly composed of two parts, one part is the mechanical noise generated during the gear meshing process, and the other part is the noise generated by the melt clogging. The former is related to the machining and installation accuracy of the gear pump, while the latter mainly depends on whether the feed of the pump is exhausted.
4. Large displacement
With the requirements of technological progress in the petrochemical industry, large displacement is necessary.
5. Variable displacement
The displacement of the melt gear pump is not adjustable, which limits its range of use. In order to change the displacement of the gear pump, scholars at home and abroad have carried out a lot of research work and have achieved many research results. There have been many patents on variable displacement of melt gear pumps, but very few can actually be converted into products. But in any case, the variable displacement of the melt gear pump will be a development direction.
Zhengzhou Batte develops and manufactures several series of melt gear pump products, which can be applied to a variety of different processes in polymer processing. The company's main products include three categories: 1. Melt gear pump for polymer reaction process, mainly used in polymer reaction transportation, such as bottom discharge and pipeline transportation of high temperature and high viscosity polymer melt in resin, chemical fiber and other industries , pressurization; 2. Gear pump for chemical process, mainly used in various chemical processes, the viscosity range of its conveying medium is very wide, suitable for pure and certain viscosity fluid; 3. Melt gear pump for extrusion system , Mainly used in extrusion molding of plastic, resin, rubber products, such as granulation, film, pipe, plate, sheet and other industries. info@battemachinery.com
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