Minerals industry safety handbook
2021-11-20 · Any means of hoisting material from below ground should be designed, installed and maintained to perform safely. Prior to the installation of any haulage system or any means of transporting persons or material in a shaft of a mine (which exceeds 30 metres in depth), the mine operator should consider: • a plan or plans showing the location of the
Design of a Hoisting System for a Small Scale Mine ...
2017-1-1 · The hoisting system is essential for the transportation of equipment, personnel, mined ore and thus for the productivity of the mine. It consists of various components in which there are winders, ropes and electric motors. The safety and reliability of the hoist depends on its design, therefore proper and accurate design of a hoist is essential.
MINE DEVELOPMENT – ACCESS TO DEPOSIT
2012-9-6 · However, with the increased use of mechanized mining methods in the narrow-reef environment of South Africa, the question of when to convert from decline truck haulage to vertical shaft hoisting is pertinent to most shallow greenfield projects in the Bushveld Complex. The economics of vertical shafts versus decline ramps is
Hoisting Equipment Cost Estimation in Underground …
2016-9-19 · Figure 2. Hoisting cost (a) USBM model (USBM 1987) (b) O''Hara model (O''Hara 1992) In this study, the MLR method and the PCA technique are combined to obtain an estimation model for costs of hoisting systems. DATA A set of technical and economical data of 18 different drum-type mine hoisting systems was gathered.
Expert Control of Mine Hoist Control System
This paper presents a kind of intelligence control algorithm for the mine hoist control system. Firstly, the desired output of the system is described by a speed curve of hoisting process. Then, the structure diagram of the hoist system is constructed, and the expert PID controller is designed based on the model of this control system; the expert knowledge base was established …
1. Introduction to Dredging Equipment
2012-11-24 · The opening of the grab is controlled by the closing and hoisting wire or by hydraulic cylinders. 18.104.22.168. Working method For grab dredgers the method of anchoring and the positioning system plays an important role for the effectiveness of the dredger. At every pontoon position an area as wide as possible will be dredged. Looking from
Underground Mining Transportation Systems
2020-8-25 · mining operation, and we must take into account the number of possible steps from the extraction site (stope/face) to the shaft or ramp portal. The total system has been established - as a combination of various types of equipment - such that it is most applicable to the ore deposits being mined, the mining methods employed and the mine layout. 1.
Our underground mines
Sub-level caving is an effective mining method for steep ore bodies, allowing maximum extraction from the ore body with a high degree of safety. The mining in the underground mines takes place in a ''drill-and-blast cycle'', i.e. a process that includes activities ranging from development to hoisting during the course of a day.
MINING WIRE ROPE ATTACHMENT & EQUIPMENT …
2020-4-9 · Northern Strands Mining, Wire Rope, Attachments & Equipment Division excels by providing a wide range of equipment and services by being the best full service provider of wire ropes, attachments, equipment and service. Truly Mine Hoisting Solutions®. The Rigging Division is a full-service facility operating
Investigating dynamics of mine hoisting systems ...
Abstract. Analyzes dynamics of the hoisting system used in the Mir shaft (841 m deep) of the 1 Mai underground black coal mine in the Ostrava-Karvina coal region. Hoist specifications are analyzed: four-rope hoist (4x53 mm) with a hoisting drum 5,000 mm in diameter, skip capacity 35,000 kg, hoist driven by 2 motors each with a power of 3,730 kW ...
Fortis Mining Engineering and Manufacturing
In 2012/2013 Fortis was contracted by DMC Mining to execute the furnishing of the No.2 shaft at the Cameco Cigar Lake mine. This large-scale project included the pouring of a 480m concrete divider wall, installation of shaft services such as electrical cable, water lines, high pressure slurry lines as well steel sets and ridged guides in the shaft.
Iron ore extraction techniques
2015-1-1 · Iron ore was won by drilling and blasting ().As mining technology generally developed, so did drilling techniques and the explosives used. Smith (1990) reported that the Cleveland deposit was associated with a very strong stone roof rock (known as "dogger") allowing mine drivages to be self-supporting. However, he states that in later years where the mining had …
Chapter 3: Hoisting and Material Handling Equipment — …
2021-11-21 · Engineers developed these pieces of heavy equipment to provide stability, distribute weight and offer safety when handling heavy loads at shorter distances. Crews often affix these simple machines to a platform, either mobile or static, to offer a mechanical advantage over other types of man-powered, pulley-based or motor-driven hoisting methods.
Technology in Transition : The
mining: Peake and his charge symbolized the traditional methods of the underground world, while the hoisting cage, powered by modern engines, represented the cutting-edge technologies being rapidly applied to surface and supporting endeavors.2 The growth of a national coal market in the late nineteenth and early twentieth
Techniques in Underground Mining
2021-11-28 · Methods for Underground Mining. The choice of mining method is influenced by the shape and size of the ore deposit, the value of the contained minerals, the composition, stability and strength of the rock mass and the demands for production output and safe working conditions (which sometimes are in conflict).
Neves-Corvo | Lundin Mining Corporation
Neves-Corvo is a mainly copper and zinc mine producing copper, zinc and lead concentrates. The operation is owned and operated by Lundin Mining''s Portuguese subsidiary Somincor. Lundin Mining acquired Neves-Corvo as part of the company''s 2006 merger with EuroZinc Mining. m 2017 NI 43-101 Technical Report. Mine Copper, Zinc, Lead and Silver.
for a continuous mining process by coupling hydraulic transporting- hoisting methods with hydraulic or solution mining systems. Ground Control All elements of ground support become increasing problems as older mines go to great depths. Rock bursts are a major problem in the Coeur d''Alene mining district. Required are advances in rock engineering
Types of Drilling Methods used in Mining | Boring | Mining ...
2021-11-28 · In this article we will discuss about the types of drilling methods used in mining. The types are: 1. Percussive Drilling 2. Rotary Drilling. Method # 1. Percussive Drilling: In this method which is the oldest one of drilling, the hole is drilled by striking a number at short in intervals on the rock by a chisel-type tool and between the blows ...