Расчет эрлифта при скважинной гидродобыче полезных ископаемых
Проведен сравнительный анализ параметров эрлифтного подъема полученных экспериментальным путем, расчетами по формуле Гейера, по балансу энергий и полученной эмпирической зависимости The authors compare the experimental airlift data with the airlift calculations by Geier''s formula, by ener...
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| Format: | Text |
| Language: | unknown |
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Закрытое акционерное общество Горная книга
2014
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| Online Access: | http://cyberleninka.ru/article/n/raschet-erlifta-pri-skvazhinnoy-gidrodobyche-poleznyh-iskopaemyh http://cyberleninka.ru/article_covers/15637048.png |
| Summary: | Проведен сравнительный анализ параметров эрлифтного подъема полученных экспериментальным путем, расчетами по формуле Гейера, по балансу энергий и полученной эмпирической зависимости The authors compare the experimental airlift data with the airlift calculations by Geier''s formula, by energy balance and from the derived empirical relation. The calculated airlift parameters are compared with the airlift characteristics and parameters from large amount of experimental data obtained either in laboratory or in field hydraulic borehole mining of phosphorite, construction-sand and gold placers. The calculation of airlift parameters by the energy balance inside and outside airlift allows taking into account design of an airlift tool and the lifting conditions. The required airlift capacity is provided by varying air consumption, airlift pipe diameter and drowning ratio when washing-out is implemented in weak-permeable rocks such as permafrost sandstone formations. The derived empirical relation for the airlift with a short suction nose-piece enables simplified calculation of the airlift parameters and yields the results close to the experimental data and the estimates by the energy balance. |
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