Wyniki wyszukiwania - BazTech

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Relationship between the geometry of the transition section and the loads acting on the conveyor belt

Woźniak Dariusz, Hardygóra Monika

Mining Science

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2023

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Vol. 30

83--97

EN

This article presents a universal theoretical model of the belt in the transition section of a troughed conveyor, for a steel-cord belt which is divided into cables and layers of rubber, and for a textile belt which is divided into narrow strips. It describes geometrical forces in the transition section of the belt and offers an illustrative analysis of loads acting on the belt. The analysis addresses the influence of the belt type on the non-uniform character of loads in the transition section of the conveyor. It focuses on how the non-uniformity of loads acting on the belt is affected by the length of the transition section, the trough angle, the belt width, and the height difference between the contour of the pulley coat and the coat of the middle idler in the trough. It presents optimal values of the pulley height with respect to the middle idler in the trough, which mitigate this non-uniformity. The use of a belt type different than the original type has been found to affect the belt load non-uniformity in the transition section of the conveyor.

2

Examination and assessment of the impact of working conditions on operating parameters of selected conveyor belts

Bajda Mirosław, Hardygóra Monika

Mining Science

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2022

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Vol. 29

165--178

EN

The effect of the operation of two textile-core conveyor belts, type B-1600 P-1600/5 8+4 H, which operated in one of the lignite mines, on their strength and operating parameters was determined. During the operation of the belts on the conveyor, the amount and type of spoil transported were recorded, as well as the belt’s operating time. The results of tests on the strength parameters of the belts in operation were compared with the results of tests performed on the same belts before their operation.

3

Method for laboratory testing rubber penetration of steel cords in conveyor belts

Woźniak Dariusz, Hardygóra Monika

Mining Science

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2020

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Vol. 27

105--117

EN

As steel cord conveyor belts are vulcanized during the production process, rubber penetrates into steel cords. It is a positive and a desired phenomenon allowing the belt to reach its required properties and ensuring its reliable and long operation on the belt conveyor. Advantageously, the rubber compound penetrating into the cord improves the strength of the cord-rubber joint by increasing the active contact surface of the two materials. This fact is of great significance in the view of the steel cord conveyor belt splicing technology, which relies on an adhesive connection between the cord and the rubber. Moreover, filling the inside of the cords with rubber protects against corrosion and has a good effect on their durability. The article presents a laboratory method for testing and evaluating the penetration of the steel cord with rubber. The method has been developed on the basis of numerous laboratory tests, which are also here described. The presented method is reliable and can be used for a broad range of cord diameters and designs. The proposal also includes a quantitative measure of the rubber penetration of cord and the criteria for its identification.