H-4 HIGH-PRESSURE WATER JET APPLICATIONS IN …

Successful application of high-pressure jet drilling must in­ clude consideration of the significant jet and formation properties which influence jet cutting performance. The most …

High Pressure Compressors for Mining Applications

Variants: Basic, BasSeal, ComSilent, ComSeal. Volumetric flow: 48–1180 scfm (80 – 2000 m³/hr) Pressure range: 230–5800 psig (16 – 400 bar) Medium: Air, nitrogen. Sauer Compressors cope with the demanding situations encountered in the underground mining business due to their robust and straightforward operation.

Hard Rock Mining Using Disk Tools Supported by High-Pressure …

The mining of hard rocks by mechanical methods, using cutting tools, is associated with problems such as sparking, dust generation and increased wear. The application of disk tools allows limiting these problems but requires constructing a machine with large dimensions and weight. To limit these problems, high-pressure water jets can …

Enduron® High Pressure Grinding Rolls (HPGR) | Weir

Our innovative Enduron® High Pressure Grinding Rolls (HPGR): Consume up to 40% less energy/power than traditional tumbling mills (>200,000t CO2 saved*) Contain a unique bearing arrangement that prevents bearing failure and enables the rollers to be quickly exchanged within a 24-hour shutdown. Require no grinding media (>700,000t CO2 …

Hydraulic Mining

Hydraulic mining utilizes the force of water sprayed under high pressure to extract coal. Hydraulic mining utilizes continuous miners to mine entries to gain access to production …

Hose for Mining Applications

Parker's product line of industrial transfer hose provides solutions for use in surface and underground mine applications, such as dust suppression, pressure washer, and water suction and discharge. ... Stinger II High Pressure Wire Braid Multipurpose Oil Resistant Hose is designed for air, mild chemicals, oil and water in applications to 212 ...

Dust removal efficiency of high pressure atomization in …

DOI: 10.1016/J.IJMST.2018.01.006 Corpus ID: 102820175; Dust removal efficiency of high pressure atomization in underground coal mine @article{Wang2018DustRE, title={Dust removal efficiency of high pressure atomization in underground coal mine}, author={Pengfei Wang and Tan Xuanhao and Weimin Cheng and Gang Guo and Rong …

The Use of High-Pressure Water Assistance in the Rock Mining …

The article presents the possibilities of using high-pressure water assistance in the rock mining process using cutting tools. Currently applied methods are based on the external spraying, in the form of water or air-water curtains, sprinkling whole mining head or internal, the so-called sectoral spraying, sprinkling of individual cutting …

Mining History: Hydraulic Mining

Hydraulic mining was a natural progression from ground sluicing. Rather than shoveling gold bearing gravel into the sluices, mining companies could shoot high pressure jets of water to dislodge and direct earth. Pressure was created by tapping water sources at higher elevations. The water … See more

Hydraulic Cannons | Hydraulic Monitors | 180 Degrees …

DOVE is a manufacturer of high quality Hydraulic Cannons / Monitors for mining and other industries.DOVE Hydraulic Monitors are efficiently used within the mining industry for various applications, including:. Hydraulic Mining, for waste and tailing reprocessing or for tailing logistics. Ore excavation, by utilizing high-pressure jet of water, to the dumping site.

High Pressure Metallurgy | Autoclave Technology

High pressure hydrometallurgical unit operations utilizing autoclave technology and associated equipment have been exploited for the treatment of sulphidic or oxide ores and concentrates for the recovery of many important elements (Au, Cu, Co, Mo, Ni, U, Zn, and platinum group metals). The increase in complexity of newer polymetallic ore bodies ...

In-situ experimental study on hydro-borehole technology

The hydro-cutting tests of coal seam performed in the Experimental Mine "Barbara" in Poland proved that the increase in water pressure in the range 20–40 MPa …

HPM. High-pressure mining pumps Designed for …

underground mining in order to ensure that there are no disrup-tions in extraction. Mine operators around the world rely on prod-ucts from AnDritz in order to remove mine water from operating areas. Main applications the multi-stage high-pressure pumps from AnDritz have been especially developed for a wide variety of operation conditions in mining.

Risk assessment of fault water inrush during deep mining

However, with the increase in mining depth, the confined water level and water head pressure will increase. Under long-term high in-situ stress and high water pressure, the wall rock deformation and serious roadway damage may be serious, and coupled with the influence of excavation disturbance, floor water inrush poses a …

How to maintain steady barometric pressure in a mine

MSHA-recommended best practices to prevent a drop in barometric pressure include: Make frequent checks for methane in work areas when the barometer is falling. Maintain adequate ventilation in the face area to prevent methane gas accumulations. Ensure areas in front of seals are ventilated so gases liberated from the sealed area are …

Stability and Sealing of Abandoned Roadways Under High …

Mining, Metallurgy & Exploration. Article. Stability and Sealing of Abandoned Roadways Under High Internal Pressure. Published: 23 May 2023. Volume …

(PDF) High pressure acid leaching: a newly introduced technology …

High-pressure acid leaching (HPAL) is an excellent hydrometallurgical process for recovering nickel and cobalt from laterite ores due to its fast kinetics, stability of residues produced, and its ...

Mechanical mechanism of rock burst accidents in slice mining …

JIANG Fu-xing, SHI Xian-feng, WANG Cun-wen, WEI Quan-de, YAO Shun-li, ZHU Si-tao, GENG Chao. Mechanical mechanism of rock burst accidents in slice mining face under high pressure [J]. Chinese Journal of Geotechnical Engineering, 2015, 37 (6): 1123-1131. DOI: 10.11779/CJGE201506019.

Pump design and its effect on mine safety and …

High Pressure Pump Design. Due to the high pressures required to operate the roof support structures, the pumps use a reciprocating piston principle, usually powered by a mid-sized electric...

Metal & Non-Metal Mining Fans | Paul's Fan Company

Portable Fans for Metal/Non-Metal Mines. Our Portable diesel model fans can be mounted on a trailer, skid, or rail car to provide ease in relocating to another mine section that requires additional ventilation. Our electric high volume, low-pressure fans are available in multiple frame sizes to fit your structure and air requirement needs.

Hydraulic Mining

Both development of the mine as well as the mining itself is carried out using high pressure hydraulic methods of cutting under the control of GMDZ–3M and 12GD monitors. The basic method employed consists of sublevel hydraulic cutting, under flexible steel mesh lagging mounted in one plane limited by the walls of the seam at each fourth sublead.

Mining | Kärcher South Africa

Remove sticky dirt easily . When dirt just won't come off, a bit of pressure helps. With Karcher hot- and cold-water high-pressure cleaners, you can remove even the most stubborn layers of any kind of dirt – such as dust, paint or even concrete. With up to 350 bar at your fingertips, you can clean building fronts, the ground and machinery quickly and …

High Pressure Pumps achieve long term approval …

RMI Pressure Systems | October 9, 2014 | 3:39 pm. RMI Pressure Systems has taken a major step forward in expanding its support of the Chinese mining market by achieving a 5 year mining approval ...

Our Dynamic HPGR Technology for Mineral Grinding | Weir

Enduron® high pressure grinding rolls (HPGR) - With low energy consumption, low maintenance requirements, excellent throughput capacity and high availability, Enduron® high pressure grinding rolls (HPGR) use dynamic skewing to provide best-in-class wear life in mining applications. They offer a proven way to improve the efficiency of grinding ...

(PDF) A progress report on ultra-high-pressure waterjet …

Mining by the application of high-pressure waterjet technology could become a competitive 'green technology' improving the economics and safety of labour-intensive mining operations. This paper ...

Applied Sciences | Free Full-Text | Optimization …

Breaking rock with a high-pressure water jet is a crucial step to ensure the smooth implementation of borehole hydraulic mining in oil shale. The hydraulic performance of the nozzle determines the …

High Pressure Grinding Rolls

High-pressure grinding rolls (HPGRs) have struggled for acceptance into the hard-rock mining sector. CRITICAL HPGR PARAMETERS. HPGR roll diameters typically range from 0.5 m to 2.8 m, depending on the supplies, and roll widths vary from 0.2 m to 1.8 m. The aspect ratio of the rolls also varies as a function of manufacturer.

Jet bore mining

A high pressure hydraulic jet is used to carve or cut out the desired area or cavern. The loose material is then removed from the cavern, either as dry material or as part of a …

Application of high-pressure grinding roll technology in …

Mining Engineering, 2019, Vol. 71, No. 9, pp. 18-18Howard, T.; Bilant, J.; Carlson, B.; Gow, N. High-pressure grinding roll (HPGR) technology was evaluated to replace tertiary cone crushing at Coeur Rochester operations (Coeur Rochester Inc.) as an opportunity to improve silver recovery. In 2016 and 2017, onsite and third-party pilot programs ...

High Pressure for Mining

High-Pressure Pumps - Compact and High-Performance Upon request, KAMAT supplies individually adapted complete pump ... High Pressure for Mining KAMAT & Co. KG Salinger Feld 10 58454 Witten, Deutschland Fon +49 (0) 23 02 / 89 03-0 Fax +49 (0) 23 02 / 80 19 17

Abrasion free mining pipelines

Mining. Corrosion & Abrasion-Resistant Pipe & Long-Life High-Pressure Flexible Mining Pipeline Systems The unique properties of SoluForce's abrasion resistant pipe system make it perfectly suitable for ore, mineral, water, chemical, and slurry transport in …

Products – Mineflex Mining Hoses

Polyurethane Heavy duty, high pressure lay flat hose UV Stabilised. Flexible in all weather conditions from -40 deg C to 70 deg C.(-40 deg F to 160 deg F). Available in standard 100m (330ft) and 200m (660ft) lengths. ... Mineflex O&G is a high-pressure, hight strength, lay-flat hose designed for pumping aggressive water around mine and frac sites.

Pressure Reducing Valves | Valves | Mining

Activated by the line pressure or by an external hydraulic or pneumatic. pressure. Operated by a pressure reducing pilot valve to achieve constant outlet. pressure, regardless of upstream pressure or flow variations. Valve and the controls are Netafim Series 61PRXPLS (X is used to signify size of valve – 3″, 4″, 6″, etc.)