Proper Selection Of Belt Speed Is The Key To Designing High Performance Conveyors

- Nov 27, 2018-

As the carrier of bulk material transportation, the belt conveyor is widely used in the field of bulk material transportation because of stable and stable material transportation, large transportation volume, long transportation distance, safe and reliable logistics, strong environmental adaptability, low production equipment and transportation cost. For a long time, we have carried out abundant research on the transmission mechanism, working characteristics and production skills of the belt conveyor, but rarely discuss the cost of the conveyor planning and operation costs. Following the rapid development of the company's production and modernization, the strong belt conveyor with large capacity and long distance is widely used. The production and operation cost of the conveyor is getting more and more attention. How to reduce the production and operation cost of the conveyor is the key to the promotion and application of large belt conveyors. This article starts with the analysis of various factors affecting the skill and economic function of the belt conveyor, discusses the criteria for judging the belt speed reasonably, and proposes an effective way to reduce the production and operation cost of the conveyor.

In the case of the volume and production skills, the main factors affecting the production and operation of the conveyor are bandwidth, belt strength, drive equipment, rollers, rollers and various brackets. These factors have different driving power. The difference, and all the elements have a close relationship with the speed. In the belt conveyor planning, only the parameters that can be determined unilaterally are the belt speed, and the speed determination is not reasonable, which directly affects the skill and economic function of the conveyor.

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Food conveyor equipment

(1) The relationship between speed and bandwidth

Statistics show that in the delivery of belt conveyor equipment, the conveyor belt price accounts for about 40%, so reducing the bandwidth is very beneficial to the reduction of transportation equipment.

(2) The relationship between belt speed and belt strength

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The higher the belt speed, the smaller the running resistance of the conveyor, and the maximum tension of the conveyor belt is also reduced, so the strength of the conveyor belt is also reduced. The standard for establishing various brackets is reduced, and the economic function is significantly improved.

(3) Contact speed and drive equipment

As the belt speed progresses, the running resistance of the conveyor belt decreases, so the output torque and the reduction ratio of the reducer decrease, which relatively improves the mechanical input power and the heat transmission power of the reducer, reduces the selection criteria of the reducer, and reduces the conveying equipment. Funding.

(4) The relationship between the belt speed and the idler speed

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The standard rules for belt conveyor planning, the roller speed should not exceed 750r/min, in order to improve the reliability and service life of the conveyor equipment, most of the belt conveyor planning manual should recommend that the roller speed should not exceed 600r/min, so when When the diameter of the roller exceeds 600r/min, the other rollers should be selected one level higher, resulting in increased fuel supply and running resistance. At present, there are 6 kinds of rollers for the standard products, namely Φ89mm, Φ108mm, Φ133mm, Φ159mm, Φ194mm and Φ219mm. The test indicates that for every 1m/s of the belt speed, the roller should be increased by one level, and the equipment will be saved. But the economic function of the progressive conveyor is very significant.