The inclined screw conveyor is suitable for inclined conveying of various bulk materials, and the inclination angle should not exceed 60°C
Inclination: 0-60°
Conveying capacity: 142m³/h
Length: 60 meters
Screw speed: 50-140 rpm
Motor power: 0.81-4KW
Voltage: 3ph 380V , 50HZ
Inclined screw conveyor is suitable for inclined conveying of various bulk materials, the inclination angle should not exceed 60 °C (the shaftless design should not exceed 15 °C), and it is suitable for conveying powdery, granular and small block materials. And the influence of bulk materials, the conveying efficiency is reduced, the motor power and the thickness of the pipe wall will increase.
When the inclined screw conveyor is used to transport materials, depending on the arching characteristics of the material, the material in the machine groove is pushed by the screw in the moving direction, and the lower part is continuously fed to prevent the upper material from sliding down, generating lateral pressure, thereby increasing the material. When the internal friction between the materials is greater than the external friction between the material and the groove wall and the weight of the material, the material will be transported upward with the screw to form a continuous material flow, which can realize the transportation of materials with large slopes. , often used in conjunction with dust removal equipment.
The same material is used with shaft, shaftless, tubular type, U type, etc. The screw conveyor has the same speed ratio and the same type, and their conveyor volume is different, not to mention if there is an inclination angle, the conveying volume is even more different, because the screw conveyor The conveyor has an inclined angle, and the material has a backflow phenomenon, so the amount of the conveyor is different.
The inclination angle of the axial tubular screw conveyor is 45°, and the maximum inclination angle of the shaftless tubular screw conveyor is 30°.
The inclination angle of the shafted and shaftless U-shaped screw conveyor is 20°-30°.
Note: The larger the angle of the inclined screw conveyor, the smaller the conveying capacity of the same speed ratio and type of screw conveyor.
| Model | Angle of inclination | Material | Motor | |||||||
| Tube | LS-108 | LS-133 | LS-159 | LS-219 | LS-273 | LS-325 | 0-90 | Carbon Steel/Stainless Steel | Inverter motor/explosion-proof motor | |
| U-shaped shaft | U-219 | U-250 | U-300 | U-350 | U-400 | U-450 | 0-30 | |||
| U type without shaft | U-200 | U-260 | U-300 | U-400 | —— | —— | 0-30 | |||
The inclined screw conveyor is divided into a U-shaped groove and a tubular casing, which can be used together with other equipment to form a conveying production line.
1. The material is conveyed in the range of 0°-60°, which solves the problem of ordinary conveyors when conveying at large angles.
2. It can be directly connected and fixed with its supporting equipment, no foundation is required, and the space can be fully utilized.
3. The conveying volume can reach 142 cubic meters per hour, the vertical lifting height can reach 8 meters, and the horizontal conveying distance can reach 60 meters.
4. It has good sealing, no dust and pollution leakage, that is, it does not waste materials and creates a good working environment.
| Diameter (mm) |
Conveying angle | Power (kw) |
Capacity (t/h) |
| 100 | 0-60 | 1.5-2.2 | 8 |
| 150 | 0-60 | 2.2-3 | 16 |
| 200 | 0-45 | 3-4 | 30 |
| 250 | 0-45 | 4-5.5 | 40 |
| 300 | 0-30 | 5.5-7.5 | 45 |
| 400 | 0-30 | 7.5-11 | 50 |
| 500 | 0-30 | 7.5-11 | 55 |
The inclined screw conveyor mainly uses the motor as the production power, and uses the rotation of the screw shaft and the screw blade to drive the movement of the material. And use the friction force generated by the material's own gravity, so as to meet the conveying principle of the spiral blade to push the material.
1. Pitch: As the inclination increases, reduced pitch screws (1/2 and 2/3) are more effective than full pitch screws, and as the pitch decreases, the perpendicularity of the thread to the pipe increases, thereby increasing the slope The combination of the bearing angle, reducing screw (1/2 and 2/3) and tubular housing provides the highest conveying efficiency.
2. Motor power: The power requirement of the inclined screw conveyor increases with the increase of the degree of inclination. Additional horsepower is required to overcome gravity and bulk material fall back.
1. 10° inclination: At inclinations up to 10°, the loss of conveying efficiency is minimal. Screw conveyors with U-shaped grooves and full-pitch screws are sufficient for most applications. The loss of efficiency can be overcome by increasing the speed of the screw conveyor, increasing the diameter of the screw conveyor or reducing the pitch of the propeller.
2. Inclination 10-20° – Below 20° inclination: The loss of conveying efficiency is usually between 10 and 40%. Screw conveyors with U-grooves and 2/3 pitch screws are sufficient for most applications. The loss of efficiency can also be overcome by increasing the speed or diameter of the screw conveyor. Additional power is required to overcome gravity and loose material falls.
3. Inclination between 20-30°: On inclinations up to 30 degrees, the loss of conveying efficiency is usually between 10% and 70%. For most applications, screw conveyors with tubular housings and reducing screws (1/2 or 2/3) are recommended. Efficiency losses can also be overcome by increasing the speed or diameter of the screw conveyor. Additional power is required to overcome gravity and loose material falls.
4. Inclination between 30-45°: On inclinations up to 45 degrees, the loss of conveying efficiency is usually between 30% and 90%. For most applications, screw conveyors with tubular housings and reducing screws (1/2 or 2/3) and larger diameters are recommended. There is also a need to increase the speed of the inclined screw conveyor. Additional power is required to overcome gravity and loose material falls.
Inclined screw conveyors are used in some different applications in the process industry. These applications include agriculture, construction, and the food and beverage industries. They transport raw materials such as cement, fertilizers, feed, sugar and meat.
Inclined screw conveyors are used to convey and lift bulk materials from one level to another. Depending on the bulk material and goals, the proper design and construction of an inclined screw conveyor will provide years of uninterrupted service and productivity.
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