types of mining industry

When they talk about types of mining, they often imagine just a list: open-pit, underground, borehole... But in reality, behind each such term there is a whole world with its own specifics, its own risks and, importantly, its own fleet of equipment. Many, especially at the initial stage, mistakenly believe that the principles of work are the same everywhere - they say, you extracted a mineral, and that’s it. However, the difference between, say, the development of a coal seam at a depth of 800 meters and the extraction of iron ore in a quarry is a difference not only in technology, but also in the approach to safety, logistics, and, of course, in the choice of equipment. Based on what I saw and worked with, this is what I would like to speculate on a little.

Open method: not only scale, but also accuracy

A quarry is the first thing that comes to mind. Mountains, dump trucks, excavators. But a key point that is often missed in general descriptions is managing the quality of the ore right at the bench. You can't just dig. It is necessary to constantly test and monitor the contours of the ore body so as not to dilute the rock. There have been cases when, due to poor sampling or incorrect interpretation of geological data, an entire section of a quarry went into low-grade dumps, and then it had to be processed, which cost a pretty penny.

Here the question arises about equipment for primary crushing. Not every crusher can handle abrasive rock, such as some types of quartzite. The wear of hammers or cheeks is enormous. I remember that at one of the copper quarries they were constantly experimenting with steel grades for crushing plates, looking for the optimal balance between price and durability. This is the same routine, but critically important work that is rarely written about in textbooks.

And of course, logistics. Removing millions of tons of overburden is not just a task for dump trucks. This is a whole science about planning routes, road slopes, organizing gas stations and repair points. Sometimes the entire cycle is idle due to the breakdown of one or two key dump trucks. Therefore, the reliability of technology is not an empty phrase.

Underground mining: a world where technology needs to be 'smarter'

You go down into the mine and find yourself in completely different conditions. Space is limited, ventilation is life, and every piece of equipment needs to be as compact yet powerful as possible. Basictypes of mining industryhere these are, in fact, different development systems: long pillars, cameras, systems with a bookmark. The choice depends on the strength of the rocks, the thickness of the formation, and its angle of incidence.

One of the most difficult tasks is maintaining the roof. Anchor support is now the basis of the basics. But there are nuances here too. Not all anchors work equally well in water-logged rocks or in zones of tectonic disturbances. There were precedents when a seemingly reliable support “floated”, and additional measures had to be urgently introduced, which disrupted the work schedule. This is an area where theory and practice sometimes diverge radically.

Separately, it is worth mentioning loading and delivery vehicles (LDM). Their choice is always a compromise between size, power and maneuverability. Chinese manufacturers, for example, have made great progress in this segment in recent years. Here, for example,LONGI Corporation(official website -https://www.ljmagnet.ru), which, as you know, has been specializing in mining equipment since 1993, offers entire lines of similar equipment. Their factory in Fushun, with an area of ​​140,000 m2 and a staff of engineers, allows for a fairly flexible approach to customer requirements. But, again, in practice it is important how this machine behaves in specific mining conditions, on a specific rock mass. Technical specifications on paper and real-world performance are not always the same thing.

Downhole mining: when you don't need to go underground

This includes the extraction of oil, gas, brines, and sometimes leaching. It would seem that everything is clean and technologically advanced. But there are a lot of pitfalls here too. Take, for example, underground leaching of uranium or copper. The efficiency of the process depends 90% on a correct understanding of the geology and hydrogeology of the site. If you incorrectly model the paths of solution movement, you can either receive less metal or, worse, pollute aquifers.

Equipment for well production includes pumps, pipes, and control systems. Corrosion and deposits are the main enemies. At one of the potassium salt deposits, they were constantly fighting against the overgrowing of wells with halite. Regular cleaning had to be carried out, which led to downtime. The selection of materials for casing strings and pumping equipment in such conditions is a separate engineering task.

And of course, automation. Modern telemetry systems allow you to monitor flow rates, pressures, and fluid composition remotely. But their implementation is not only about buying hardware. This includes retraining staff, creating new regulations, and protecting data. Sometimes it's easier to do things the old fashioned way, but that's a recipe for ineffectiveness in the long run.

Equipment: connecting link of all types of production

Whichevertype of miningno matter what we consider, technology is always at the core. And here the trend of recent years is not just an increase in size or power, but 'intellectualization'. Wear sensors, predictive analytics systems, built-in diagnostic modules. The goal is to prevent the equipment from suddenly stopping and predicting breakdown.

But there is also a downside. The more complex the equipment, the higher the requirements for service, the availability of spare parts, and the qualifications of mechanics. In remote regions where most of the mining takes place, this becomes a serious problem. Sometimes a reliable, but slightly outdated unit is preferable to the latest model, for which there are no trained specialists within a radius of a thousand kilometers.

In this context, the experience of large manufacturers who localize not only sales, but also service is interesting. SameLONGI Corporation, being the largest enterprise for the development and production of mining equipment with an annual output of about 4,000 units, relies on comprehensive support. The presence of more than 1,200 employees, most of whom are engineers and technicians, allows us to build service networks. For the on-site practitioner, this is often more important than the small difference in price for the unit itself. Because downtime due to a breakdown is measured in colossal losses.

Environmental and social aspects: an integral part of modern mining

Today you can’t just come and start mining. Anytype of miningclosely related to environmental issues and interaction with the local population. A quarry is reclamation, a mine is the placement of dumps and sludge storage facilities, well mining is the protection of subsoil and water.

In practice, this results in a huge layer of documentation, constant monitoring and, importantly, additional costs. But this is no longer an expense item that can be neglected. Investors and banks are paying very close attention to the ESG agenda. A project without a well-thought-out environmental section simply will not receive funding now.

Moreover, this also influences the choice of technology. For example, the abandonment of heap leaching in favor of a more closed cycle at a hydrometallurgical plant may be dictated precisely by the tightening of environmental standards, and not by the direct economics of the process. Or the transition to electric transport in mines is not only a matter of the cost of diesel fuel, but also concern for the air in the workings for people. These moments are now woven into the technological chain at the most fundamental level.

Instead of a conclusion: about constant evolution

So, going back to the beginning,types of mining industry- this is not a static list from a textbook. These are living, developing areas that are constantly adapting to new challenges: depth of occurrence, complexity of ores, environmental requirements, economic situation. The experience that is gained in the quarries of Vorkuta, in the underground mines of the Urals or in the oil fields of Western Siberia is the very practical basis that moves the industry forward.

And in this evolution, dialogue between those who work in the face or on the bench and those who create the equipment for them plays a key role. When a plant engineer, like the same teamLONGI, receives feedback from a real object about how the magnetic separator behaves in operation or what load the LHD frame can withstand under vibration conditions - only then are truly effective solutions born. Without this feedback, any, even the most advanced, technology remains just hardware.

Therefore, a conversation about types of production is always a conversation about details, about specific cases, about successes and, no less important, about failures. It is from them that what we call experience is made up. And in our business this is the most valuable asset.