The development history of screw conveyors

The development of screw conveyors can be divided into two types: shaft screw conveyors and shaftless screw conveyors. Shaft screw conveyors are composed of screws, U-shaped troughs, covers, inlet and outlet ports, and drive devices. They are generally available in three types: horizontal, inclined, and vertical. Shaftless screw conveyors use screws instead of shaftless screws, and are equipped with replaceable linings in the U-shaped troughs. They have a simple structure, and materials are fed in from the feed port and then pushed by the screws and discharged from the outlet port. The entire transmission process can be carried out in a sealed trough. Generally speaking, the screw conveyors we usually refer to are shaft screw conveyors.
For many materials that are difficult to transport, people have been looking for a reliable method of transportation, and shaftless screw conveyors are a better solution.
From the middle of the 17th century, the aerial ropeway was used to transport bulk materials. In 1887, the screw conveyor was invented by Archimedes. Later, it was improved and widely used in industry to transport bulk and solid materials. After a long period of development, a series of screw conveyors were gradually developed, which made the screw conveyor have a great development.
GX screw conveyor is an early type of screw conveyor and also the earliest general production equipment in my country. It mainly transports powder, granular and small block materials. It is not suitable for transporting perishable, sticky and easy to agglomerate materials and large blocks of materials, because these materials are easy to stick to the screw and rotate with it, or cause blockage at the hanging bearing, which brings great inconvenience to the material transportation process. The advantages of GX screw conveyor are mainly energy saving and significant consumption reduction. Its head and tail bearings are moved outside the shell, which has good dustproof sealing, low noise, strong adaptability, convenient operation and maintenance, and flexible layout of inlet and outlet positions; the disadvantages are high power consumption, fast wear of machine parts, and serious crushing of materials during transportation.
LS screw conveyor is a new generation of screw conveyor modified and designed on the basis of GX conveyor. LS screw conveyor is characterized by novel structure, reliable performance, advanced technical indicators, wide application range and significant energy saving and consumption reduction.