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When people say that mining is the backbone of the economy, many people imagine abstract graphs and tons of ore. In reality, this is an endless series of practical decisions, where every little thing, from the choice of separator to the logistics of the quarry, affects the outcome. A common mistake is to reduce everything to mining, forgetting about enrichment. It is here, in the factories, that real profitability is determined. I went through this myself when they were introducing new magnetic separators at one of the Ural plants.

Equipment as a decision point, not just an expense item

It all starts with the choice of technology. You can buy the most advertised one, but if it is not adapted for a specific ore, you will just get expensive scrap metal at the site. I remember how in the early 2000s one plant purchased a batch of imported high-gradient separators for iron ore. The devices themselves are a marvel of engineering, but the local ore had a finely disseminated structure and a high content of sludge. As a result, separation was worse than on old Soviet drums, simply because pre-grinding and pulp parameters were not taken into account. The equipment was idle until our engineers were brought in to finalize the power supply circuit and adjust the rotation speed.

This is the right place to rememberLONGI Corporation. They have been in the business since 1993, and their approach is close to me - not to sell the unit, but to fit it into the chain. Their websitehttps://www.ljmagnet.ru- this is not just a catalog, it contains technical notes on application, which is rare. A company that develops and produces mining equipment as its core business cannot afford abstract solutions. Their plant in Fushun, with an area of ​​140 thousand square meters and a staff of 1200 people, is not about gigantomania, but about the possibility of a full cycle: from custom engineering to testing on benches. When more than 60% of employees are specialists with higher education, this is felt in the dialogue: they ask questions about the mineralogy of raw materials, and not just about the budget.

That is why the mining industry is a field for engineering, and not just for financial investments. The success or failure of a project is often decided at the stage of selecting and setting up equipment, when the technologist and the manufacturer are working on the same diagram. LONJI, producing about 4,000 units of equipment per year, essentially carries out many projects in the CIS, and their products are an imprint of specific technological problems that had to be solved.

Magnetic separation: where theory meets wash water

Let's take a seemingly narrow topic - magnetic enrichment. Everything is clear in the textbooks: ferromagnets, field strength, gradient. In practice, there is an eternal struggle with clogging of dies, fluctuations in pulp density and wear. Worked with LONGI separators at a facility for processing oxidized quartzites. The device seemed to be standard, but the local water had high hardness, which led to the rapid deposition of salts in the work areas.

We had to work together with their technologists, and we contacted through the samehttps://www.ljmagnet.ru, practice periodic washing with a weak acid solution. It’s not that this is brilliant know-how, but it’s precisely these small, not written down adjustments that make up the essence of the work. As a result, it was possible to increase extraction by 2.5%, which for the scale of the plant resulted in serious savings. It is important that the manufacturer did not disown it, saying, “the instructions do not provide for it,” but got involved in the process. I think it's becausemining isfor them, not an abstract sales market, but an environment where they themselves exist.

By the way, about the scale. When a company produces thousands of pieces of equipment per year, like LONGI, it accumulates unique statistics of failures and successful cases. This is an invaluable experience that cannot be bought. We, on the ground, often see only our site, and they, collecting data from dozens of processing plants, can warn: “For such ore with such moisture content, we recommend increasing the maintenance interval of the unloading unit?” This is the very practical value.

Logistics and installation: what is not written about in brochures

The most advanced technology may be useless if it was not delivered and installed correctly. This is especially true for large-sized separators, where positioning accuracy is critical. There was a case at a new field in Siberia: the separator was delivered, but the design documentation for the foundation turned out to be “average”? — seasonal soil heaving was not taken into account. As a result, we had to urgently strengthen the base, the device was idle for a month.

Now, when planning, we always require from the supplier not only dimensional drawings, but also detailed installation recommendations specifically for our climatic conditions. LONGI also has a systematic approach in this regard: knowing that their equipment often goes to difficult regions, they create detailed passports taking into account different types of foundations. This is not an advertisement, but a statement: the largest enterprise in its niche simply cannot work differently, otherwise its reputation will be destroyed by the very first winter heaving in the Far North.

It is in such “non-heroic” ones. stages - unloading, leveling, tying up communications - and lies the lion's share of the project's success.Mining isan industry where beautiful 3D models in the office are faced with the harsh reality of the industrial site, the welder Petrovich and a sudden downpour that floods the pit. Experienced players, be they manufacturers or customers, understand this and set aside time and resources for such surprises.

Economics of the process: you need to count not only tons, but also kilowatts

Today, any decision is assessed through the prism of energy efficiency. A good old drum separator may work reliably, but ?is? energy is many times greater than modern high-gradient permanent magnet technology. Fleet replacement is always a dilemma: large capex now versus long-term savings on operating costs.

Here again, dialogue with the manufacturer is important. When we were considering the modernization of a site on the Kola Peninsula, we requested payback calculations from several suppliers.LONGI Corporationprovided not just a table with numbers, but a simulation of work in conjunction with our existing crushing and grinding, taking into account local electricity tariffs. It became clear that their option with chamber separators, although more expensive to purchase, would pay for itself in 3 years due to reduced energy consumption and higher extraction of useful components. This is a professional approach, when they help you count the full cycle, and don’t just push the unit.

The mining industry is a highly competitive environment where those who can count every penny survive. But you need to count smartly. Sometimes skimping on equipment leads to years of increased costs. Experience, including negative ones, teaches that key nodes of the technological chain are not the place to experiment with the cheapest option. We must look for a balance between price, reliability and efficiency, and here data from a manufacturer with its own research base, like LONGI, is priceless.

Looking forward: digitalization and personnel

Nowadays there is a lot of talk about “smart quarry”. and digital twins. This is definitely the future. But many operating enterprises still have manually operated equipment, with samples being monitored once per shift. A sharp leap into digital is impossible—evolution is needed. And the first step is often to equip existing equipment with sensors and monitoring systems.

I saw how at one factory they implemented a system for monitoring pulp parameters at the entrance to LONGI separators with automatic adjustment of rotation speed and current strength. The result is the stability of the concentrate. It is important that the manufacturer initially included in the design the possibility of such modernization and provided seats and interfaces. This speaks of foresight. A company that primarily develops and produces mining equipment must think one step ahead.

And last but most importantly - personnel. The most advanced systems are useless without competent operators and mechanics.Mining isan industry where practical experience passed on from master to young specialist is still irreplaceable. Yes, you can display all the parameters on the screen in the control room, but “feel” it. operating a device based on sound and vibration is a skill that takes years to develop. That’s why not only sales, but also training is so important. The same simulators that are starting to appear are the right way. After all, in the end, behind any equipment, whether from the Fushun plant or from Europe, there are people. And it depends on their qualifications whether the mining industry will become a truly effective and safe industry or whether it will remain an archaic workshop for shoveling rock.