REC «Mekhanobrtekhnika» (Russia):

Arsentyev V. A., Research and Development Director, Doctor of Engineering, secretariat@npkmt.spb.ru

Mikhaylova N. V., Production Manager, Ph. D. in Technical Sciences, mikhailova_nv@npkmt.spb.ru

Uchalinskiy GOK (Russia):

Zverev A. P., Mining Engineer, upr_zverev_ap@ugok.ru

The article presents the results of experimental equipment model testing for stowing mix components disintegration based on the KID300 inertia cone crusher. Different operating regimes were studied on typical raw material — blastfurnace granaulated slag as a binding material, limestone and diabase, including clayey, as filler. Quality of stowing mixes, produced from crushing products, was studied. Crushing regimes were determined for each type of raw material used for preparation of stowing mixes. The equipments' working ability and design reliability with respect to filler and binding material, as well as a possibility to achieve filler's and binding material's fineness of grind, required for preparation of stowing mix with satisfactory characteristics, were corroborated. It is shown, that granaulated slag crushing in the KID300 both in wet and dry regimes permits to achieve a required slag grainsize distribution for its utilization as an additional binding material. It is noted, that stowing mix components crushing in the KID in wet regime requires considerably less water, than for stowing mix preparation in mill, which results in significant decrease in mine water removal as well as in water purification capacity. Testing of produced stowing mix sam ples shows that its cubestrength exceeds the characteristic strength. So, application of vibratory crushing machines for disintegration of fillers' and binding materials' components will permit to essentially reduce energy consumption by stowing mix preparation complex, as well as to reduce binding material consumption.

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