Dredging Technology of Placer Deposits in the Far North

Year 2022, Volume: 61 Issue: 3, 143 - 147, 30.09.2022

Ravil Zinnurovich Nafikov , Victor Evgenievich Kislyakov Aleksandr Konstantinovich Kirsanov Ekaterina Vasilevna Shevnina Anastasiya Olegovna Ivanchuk Pavel Viktorovich Katyshev Umardzhon Riezidinovich Teshaev

https://doi.org/10.30797/madencilik.1025658

Abstract

The authors consider the problem of reducing the dredge performance when operating at subzero air temperatures. This problem is particularly relevant for deposits located in the Far North, where the dredging season is limited by climatic conditions. During the period of subzero air temperatures dredge performance decreases significantly due to the icing of dredge structure. In consequence, dredging operations are terminated until the occurrence of favorable conditions for work. In this regard, the authors propose a method for isolating the open-pit mine with a hangar made of contemporary construction materials. Cellular polycarbonate, which has several advantages, was chosen as the most promising material for insulating dredging works. The article offers the technical and technological solutions for the proposed method of extending the dredging season. The costs of a dredge hangar for dredges of different sizes and the annual cost of its movement are calculated. A method has been developed for determining the optimal maneuvering angle of the dredge and the width of the single face, whose values depend on the type of dredge and the gold content in the sand. The areas of dredge hangars are determined by the graphical-analytic method. The article presents an example of the air temperature dynamics in a dredge hangar during the year, as well as determines the duration of the mining season.

Keywords

placer deposit, placer gold, dredge, mining season, dredging hangar, winter season, Far North, productivity

Supporting Institution

The work in this area is supported by the Krasnoyarsk Regional Science Foundation for projects of applied scientific research and experimental developments carried out by undergraduates and postgraduates to ensure the sustainable development of the Arctic and the Far North.

Uzak Kuzeydeki Plaser Mevduatlarının Tarama Teknolojisi

Abstract

Yazarlar, sıfırın altındaki hava sıcaklıklarında çalışırken tarama performansını düşürme problemini göz önünde bulundururlar. Bu sorun özellikle, tarama mevsiminin iklim koşullarıyla sınırlı olduğu Uzak Kuzey'de bulunan yataklar için geçerlidir. Sıfırın altındaki hava sıcaklıkları döneminde, tarama yapısının buzlanması nedeniyle tarama performansı önemli ölçüde azalır. Sonuç olarak, çalışma için uygun koşullar oluşana kadar tarama işlemleri sonlandırılır. Bu bağlamda, yazarlar, çağdaş inşaat malzemelerinden yapılmış bir hangar ile açık ocak madeni izole etmek için bir yöntem önermektedir. Çeşitli avantajlara sahip hücresel polikarbonat, yalıtkan tarama çalışmaları için en umut verici malzeme olarak seçilmiştir. Makale, tarama mevsimini uzatmak için önerilen yöntem için teknik ve teknolojik çözümler sunmaktadır. Farklı büyüklükteki taramalar için bir tarama hangarının maliyeti ve hareketinin yıllık maliyeti hesaplanır. Değerleri tarama tipine ve kumdaki altın içeriğine bağlı olan, taramanın optimal manevra açısını ve tek yüzün genişliğini belirlemek için bir yöntem geliştirilmiştir. Tarama hangarlarının alanları grafik-analitik yöntemle belirlenir. Makale, yıl boyunca bir tarama hangarındaki hava sıcaklığı dinamiklerinin bir örneğini sunmakta ve madencilik sezonunun süresini belirlemektedir.

Keywords

plaser tortusu, plaser altın, tarama, madencilik sezonu, tarama hangarı, kış mevsimi, Uzak Kuzey, üretkenlik

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