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Ore-pass dimensions in scraper winning

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Soviet Mining Aims and scope

Conclusions

  1. 1.

    Present-day ore-pass dimensions are impeding an increase in productivity of men and faces and in the rate of the mining-out process.

  2. 2.

    Optimum ore-pass chute dimensions are as follows: width 2.0 m and height of passage orifice 1.2–1.3 m. For such chutes there should not be more than two cases of ore sticking per shif. To attain these chute dimensions, the height of the haulage working must be increased to 2.8 m. This would increase the scrapermen's productivity to 180–200 t/shift.

  3. 3.

    Once ore-pass working parameters have been optimized, there will be less dilution of the ore and a rise in its metal content. This considerably enhances the technical and economical performances of the mine.

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Authors
  1. Yu. I. Chirkov
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  2. Yu. P. Korochanskii
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  3. V. G. Los'ev
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Additional information

Krivoi Rog Mining Institute. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 104–106, November–December, 1967.

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Chirkov, Y.I., Korochanskii, Y.P. & Los'ev, V.G. Ore-pass dimensions in scraper winning. Soviet Mining Science 3, 631–633 (1967). https://doi.org/10.1007/BF02497923

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  • DOI: https://doi.org/10.1007/BF02497923

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