Noise Reduction of Belt Conveyor Tracks

Gondek, Horst; Kolman, Jiri; Bohac, Daniel

doi:10.5593/sgem2020/1.2/s03.025

Cited by 2 publications

(2 citation statements)

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“…Impact rollers, like conveyor rollers, produce vibrations that become more intense as the circumferential speed of the rotating roller shell increases. Vibrations and the noise [12,13] of the conveyor rollers are an undesirable by-product of the continuous conveyor belt operation. [14] define that due to the number of idlers to be monitored, the size of the conveyor, and the risk of accident when dealing with rotating elements and moving belts, monitoring of all idlers (i.e., using vibration sensors) is impractical regarding scale and connectivity.…”

Section: Introductionmentioning

confidence: 99%

Measuring Device Detecting Impact Forces on Impact Rollers

Hrabovský,

Kurač,

Pravda

et al. 2024

Preprint

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This paper presents laboratory devices on which experimental measurements were carried out to prove the validity of the assumption about the reduction of vibrations transmitted to the conveyor belt structure generated by the impact forces of falling material grains in the places of transfer or on the hoppers of conveyor belts. In order to limit damage to the conveyor belts caused by the impact of the sharp edges of material grains, conveyor belts are supported by impact rollers or impact rubber rods in the places of transfers and on the hoppers of belt conveyors. The flattened ends of the impact rollers are inserted into the grooves of steel brackets installed on the supports of the fixed conveyor idlers of a conventional design. In this paper, a special modification of the fixed conveyor idler is presented, which consists of inserting plastic brackets into the structurally modified roller axle holders of the fixed conveyor idler. Measurements were carried out on the first laboratory device, which showed that the specially modified fixed conveyor idler resulted in a higher damping of up to 15% of the impact forces of the falling weight on the rubberized hoop of the impact roller shell compared to the conventional fixed conveyor idler design. Measurements carried out on the second laboratory device show that the effective vibration velocity values detected at the points where the impact roller axis fits into the fixed roller table holder, i.e. points B and D, are higher than when using plastic brackets, up to 6% for a 108 mm diameter roller, compared to steel impact roller brackets.

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Section: Introductionmentioning

confidence: 99%

Measuring Device Detecting Impact Forces on Impact Rollers

Hrabovský,

Kurač,

Pravda

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Conveyor noise depends on many factors, and its nature is complex and difficult to predict. The dominant sources of belt conveyor noise are components resulting from the rotation of pulley bearings, occurring especially on new routes [27,29]. A separate problem is posed by point sources such as drives, return stations, or transfer points, but in this case the reduction of noise emission is facilitated by the possibility of using acoustic barriers and soundproofing elements [30].…”

Section: Introductionmentioning

confidence: 99%

A Preliminary Studies of the Impact of a Conveyor Belt on the Noise Emission

et al. 2022

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This article performs a comparative analysis of noise generated by conveyor belts with different design parameters. The study was conducted for belts with the same tensile strength, differing in the physical parameters of the cover rubber. Noise emission measurements were performed on a laboratory belt conveyor. The test on the stand allowed for the determination of the noise emission as a function of variable operating parameters: the tensioning force and linear speed of the belt. Research results indicated a significant impact of speed on the emitted noise. The effect of belt tension on noise emission is small, and it is definitely less significant than the effect of linear speed. The results also show that it is possible to select a conveyor belt that emits less noise under the same operating conditions. The analysis of the results allowed us to determine the impact of the physical parameters of the belt covers on the emitted noise.

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Noise Reduction of Belt Conveyor Tracks

Cited by 2 publications

References 0 publications

Measuring Device Detecting Impact Forces on Impact Rollers

Measuring Device Detecting Impact Forces on Impact Rollers

A Preliminary Studies of the Impact of a Conveyor Belt on the Noise Emission

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