When the screw shaft rotates, due to the gravity of the material and the friction generated by the wall of the trough, the material can only move forward along the bottom of the conveyor trough under the push of the blades. The rotating screw makes a translational motion. The movement of the material in the middle bearing depends on the thrust of the material moving forward. Therefore, the transportation of materials in the conveyor is a slipping motion. In order to make the screw shaft in a more favorable tension state, generally the driving device and the discharge port are placed on the same end of the conveyor, and the feed port is placed as close as possible to the tail of the other end. The rotating screw blade pushes the material for transportation, so that the force that the material does not rotate with the screw conveyor blade is the weight of the material and the frictional resistance of the screw conveyor casing to the material. The surface of the blade has solid surface, belt surface, blade surface and other types according to the different materials to be conveyed.
The LS screw conveyor is a new generation of screw conveyor improved on the basis of the GX screw conveyor. It increases the passing area of the material, makes the material pass smoothly, and improves the conveying capacity. The screw shaft of the screw feeder and The connection between the suspension bearing and the head and tail shaft adopts the embedded tongue type, which is easy to install and disassemble, without axial movement, convenient maintenance, simple operation, simple maintenance, novel structure, stable transmission, wide range of use, no material blocking, and energy saving Features such as low noise and long service life. The screw feeder has advantages in solving the problem of conveying dry cement, ore, coal, fertilizer and other powdery materials that are easy to fly and seriously affect the surrounding environment. At the same time, the screw feeder can also complete mixing, stirring and cooling when conveying materials. Operation, can be used for unloading or loading various materials and conveying bulk particles in warehouses.
The selection of the LS screw conveyor can determine the size, screw speed and power of the screw conveyor according to the nature of the conveying material, the conveying volume, the conveying distance, the inclination angle, and the installation environment. The screw blades on the screw conveyor have the right There are two types of rotary and left-handed. At present, the horizontal screw feeder first considers the right screw for conveying materials. The variable pitch technology can also be used to improve the conveying capacity and use effect of the screw conveyor. The material inlet and outlet of the screw conveyor can be square and round. Kinds of options can also be customized according to site requirements.
There are eleven specifications for the screw of LS type screw conveyor. There are two types of drive modes: single-end drive and double-end drive. The length of the LS type screw conveyor is 0.5m. The corresponding conveying system can be formed according to different site needs. Like the GX screw conveyor, it is used for horizontal or one-way conveying with an inclination angle of less than 20°.
Main features of LS screw conveyor:
1. Large carrying capacity.
2. Strong adaptability, convenient installation and maintenance, and long life.
3. The whole machine is small in size, high in speed, and uniform in conveying.
4. The discharge end is equipped with a cleaning device, the whole machine has low noise, strong adaptability, and flexible layout of the inlet and outlet positions.
5. Good airtightness, the outer shell is made of seamless steel pipes, and the ends are connected by flanges to form a whole, with good rigidity.
Working principle of LS screw conveyor:
The LS type screw conveyor uses a rotating screw to push the conveyed material along a fixed casing for conveying work. The head and tail bearings are moved outside the casing. The hanging bearing adopts a sliding bearing and is equipped with a dust-proof sealing device. Generally, powder metallurgy is used, felt bearing bushes are used for conveying cement, and suspension shafts and screw shafts are connected by sliding blocks.
LS type screw conveyor is commonly known as auger, and its application scope: various industrial sectors, such as building materials, electric power, chemical industry, metallurgy, coal, machinery, light industry, food and food industries. It is suitable for conveying powder, granular and small block materials. Such as: cement, coal powder, grain, chemical fertilizer, ash, sand, etc., the temperature of the material should not exceed 200℃. It is not suitable to transport the easily deteriorated, viscous, and easily agglomerated materials, because these materials will stick to the On the spiral blade, and then rotate without moving forward, or form material accumulation at the hanging bearing, so that the spiral machine can not work normally. However, it is allowed to be used at a slight incline, and the inclination angle shall not exceed 20°C.
LS screw conveyor is the main unit for mechanized transportation in various sectors of industry and agriculture, which can reduce labor intensity and improve work efficiency in transportation, and has a wide range of applications. It is suitable for various industries, such as building materials, chemical industry, electric power, metallurgy, coal, food and other industries, and suitable for horizontal or inclined conveying of powder, granular and small materials, such as coal, ash, slag, cement, grain, etc.