Vacuum spraying is a post-processing technology for forming feeds developed in recent years in the world. It is also called liquid permeation or core spraying. Vacuum spraying adds a high proportion of liquid (primarily grease) to the expanded pellets, making it particularly suitable for the production of high-energy aquafeeds. The general process flow is as follows: Expanded extruded pellets→Dryer→Vacuum spraying machine (weighing→vacuum→mixing spray→pressing into the outside atmosphere)→cooler Factors affecting the vacuum spray effect are pressure release time, quality of extruded pellets, temperature of grease spray, altitude of the sea, temperature of extruded pellets, drying speed of extruded pellets, and the like.
PVC High Speed Door are designed for indoor use and ensure rapid handling operations between different areas that should remain separated. These safe and efficient industrial doors are made of a shaped steel frame and covered with PVC. These high speed doors are safe and efficient and consist of a shaped steel frame covered with PVC. Safety is ensured by their photocells and barriers.
High speed doors protect us from harm, save energy and help us to separate processes for optimal productivity. A high speed door's most important job is to simply open and close quickly and safely every time you need it.
The high speed pvc roll shutter door require high strains, caused by the high operating speed and the frequency of openings, have to be taken into account during construction. In the same way, basic conditions like size and installation location add up to considerable requirements regarding safety and control technique.
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