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Shaftless screw conveyor is a common conveying equipment, which is mainly used to convey bulk materials, powder and granules from one place to another. The equipment has the characteristics of simple structure, reliable operation, convenient loading and unloading, etc., and is widely used in the production process of chemical industry, metallurgy, building materials, food, environmental protection and other industries.
The conveying capacity of a shaftless screw conveyor refers to the amount of material it can convey within a certain period of time. Different types of shaftless screw conveyors have different conveying capabilities due to differences in their structure, cross-sectional area, speed and other parameters. The following is a specific description of the corresponding conveying capacity of different models of shaftless screw conveyors.
The conveying capacity of this model is from 1 m3/h to 10 m3/h, and the conveying length is within 5 meters. It is suitable for conveying self-flowing and fluid bulk materials, such as cement, lime, coal powder, wheat, etc.
The conveying capacity of this model is from 2.5 cubic meters per hour to 25 cubic meters per hour, and the conveying length is within 15 meters. It is suitable for conveying bulk materials mixed with a small amount of humidity, such as flour, mortar, fertilizer, etc.
The conveying capacity of this model is from 8 m3/h to 80 m3/h, and the conveying length is within 20 meters. It is suitable for conveying powdery and granular materials, such as coal powder, lime, flour, calcium powder, etc.
The conveying capacity of this model is from 30 m3/h to 300 m3/h, and the conveying length is within 30 meters. It is suitable for conveying powdery and granular materials, such as sand, coal dust, cellulose, etc.
The conveying capacity of this model is from 80 m3/h to 800 m3/h, and the conveying length is within 45 meters. It is suitable for conveying powdery materials and granular materials, such as cement, coal powder, corn, etc.
To sum up, the conveying capacity of the shaftless screw conveyor is closely related to its model. When using this equipment, the appropriate model and parameters should be selected according to actual needs to achieve the best delivery effect.
The conveying capacity of shaftless screw conveyor is mainly calculated based on the properties of the material, the design parameters of the conveyor and the operating conditions. The following is a common calculation method for estimating the conveying capacity of shaftless screw conveyor:
1、Determine material characteristics
Material density: Determine the density of the material being conveyed, usually in kilograms per cubic meter (kg/m³).
Material flow rate: Determine the material flow rate that needs to be conveyed per hour, usually in tons per hour (t/h).
2、Determine conveyor design parameters
Screw diameter and pitch: Determine the screw diameter (D) and pitch (P) of the shaftless screw conveyor, usually in meters.
Speed: Determine the speed of the screw (N), usually in revolutions per minute (RPM).
3、Calculate conveying capacity
The conveying capacity of shaftless screw conveyor can usually be calculated by the following formula:
Where:
Q is the theoretical conveying capacity of the conveyor, in cubic meters per hour (m³/h).
\rhoρ is the density of the material in kilograms per cubic meter (kg/m³).
QmQm is the flow rate of the material in tons per hour (t/h).
DD is the diameter of the screw in meters (m).
PP is the pitch of the screw in meters (m).
NN is the speed of the screw in revolutions per minute (RPM).
ππ is the ratio of pi, which is approximately 3.14159.
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