equipment for the mining and metallurgical industry

When they talk aboutequipment for the mining and metallurgical industry, many immediately imagine giant excavators or open-hearth furnaces. But this is just the tip of the iceberg. In fact, the biggest headache often begins at the stage of enrichment and preparation of raw materials, where the entire subsequent chain depends on the reliability and accuracy of the operation of separators, crushers or filter presses. This is where the common miscalculation lies: chasing scale, forgetting about “quietness”. the work of auxiliary units, which, in fact, set the tone for the entire production.

From drawing to quarry: where theory meets reality

Worked with different suppliers over the years. It used to be that they would deliver the latest crusher under a contract, with ideal figures for productivity and service life in the passport. And on site it turns out that the bearing units are not designed for constant vibration from local, especially abrasive rock. Trifle? No. Downtime for a day due to replacement of a unit means tens, if not hundreds of thousands of lost profits. Therefore, now when choosing anymining equipmentI look not only at the catalogue, but also at the history of the company: do they have their own testing facilities, how long have they been on the market, how do they respond to complaints.

By the way, about history. Take, for example, the LONJI corporation (official website -https://www.ljmagnet.ru). The company has been operating since 1993, and that says a lot. In thirty years, you can gain not only experience, but also hit all the possible bumps in order to ultimately offer truly workable solutions. Their profile is precisely the development and production of that very critical enrichment equipment that I spoke about: magnetic separators, systems for separating materials. These are not the units that end up in ceremonial photo reports, but without them, a modern mining or metallurgical plant is just a pile of iron.

What appeals to me about their approach? The scale of production—4,000 pieces of equipment per year—is not a makeshift workshop. But something else is more important: at their site in Fushun (140,000 m2, by the way), more than 60% of the employees are engineers and technicians with higher education. In an industry where the emphasis is often placed on quantity rather than quality of engineering, this type of staffing is a serious ask. This means that there is someone who can not only assemble the unit according to the scheme, but also modify it for the customer’s specific ore or slurry.

Magnetic separator: the invisible metallurgy worker

Here, for example, is magnetic separation. From the outside it seems - well, a magnet and a magnet, what’s so complicated about it? In practice, the efficiency of extracting iron from tailings or purifying raw materials for non-ferrous metallurgy depends on thousands of nuances. The configuration of the magnetic system, the drum material, the pulp feed rate, even the temperature of the medium. A mistake in one thing - and instead of a concentrate you get dumps with a decent content of a valuable component. The losses are quiet, but colossal.

I remember an incident at one of the Ural plants. The old separator worked, but as the iron content in the main ore fell, its efficiency dropped sharply. We started thinking about a replacement. We also considered LONGI equipment. Their engineers did not immediately sell the most powerful model. First, they requested samples, carried out their own laboratory tests at the stand, and only then proposed a modification of the separator with a modified coil winding pattern and enhanced protection of the drum from wear. The key was the request for samples - this is a sign that the company is ready to delve into the problem, and not just ship the goods from the warehouse.

As a result, after installation, it was possible not only to increase extraction, but also to reduce the power consumption of the node. Such things will not be highlighted in bold in the annual report, but the chief mechanic and chief technologist slept more peacefully. This is the value of normalequipment for the metallurgical industry- it works predictably and saves resources in the long term, and does not just take up space on the workshop.

Logistics, installation and pitfalls

Often it all comes down to issues that are far from the technical passport. Delivery of large equipment to a remote area, qualification of local installers, availability of spare parts. An ideal unit that will wait its turn for unloading for a month, and then for another three months it will be assembled by “universal” forces. specialists - this is a failure of the project.

Here again, the manufacturer’s approach is important. If a company, like LONGI, has proven logistics and can provide its own or certified specialists for installation supervision and commissioning, this removes the lion's share of risks. Their factory area and staff of 1,200 people indirectly indicate that they have established processes not only for production, but also for support. This is not a guarantee, but it is a serious plus. In our work, trust is built on details such as whether the supplier will be able to help when an emergency situation arises on Friday evening.

I had a negative experience with a European supplier of filter presses. The equipment is good, but when an urgent replacement of the membrane was required, it turned out that the nearest spare parts warehouse was in Germany, and the delivery time was 6 weeks. Production has stopped. After that, when choosing, I always ask whether the supplier has a service center or at least a warehouse for the most consumables in the CIS region. Having a full cycle from development to service in an area close to the consumer is no longer a luxury, but a necessity for any serious player in the marketmining equipment.

Evolution of requirements: from strength to “intelligence”

Previously, the main criterion was strength. ?So that it breaks less often? Now this is not enough. Equipment must not only be strong, but also energy efficient, maintainable (so that replacing a unit takes hours rather than shifts) and, increasingly, “smart”. We are not talking about mandatory robotization, but about a built-in diagnostic system, vibration and temperature sensors that make it possible to predict failure rather than deal with its consequences.

The direction in which the industry is moving is the creation of complexes. Not just a single separator or crusher, but an interconnected line where units exchange data to optimize the entire process. So that, for example, the separator automatically adjusts the strength of the magnetic field to changes in the composition of the pulp coming from the crusher. This requires deep integration of engineering departments that develop different types of machines. Companies that are initially focused on the entire clusterequipment for the mining industry, and not on single products, have an advantage here.

I look at the portfolio of products from the mentioned corporation - they cover different stages: from crushing and grinding to magnetic separation and dehydration. This allows them, in theory, to think systematically and offer more balanced solutions, where all components are optimally matched to each other. So far this is more of a potential, but this is the trend.

Instead of a conclusion: thinking out loud

So what am I talking about? Yes, that the choice of equipment is always a compromise between price, reliability, efficiency and service. There is no such thing as a perfect option. But you can minimize risks by working with manufacturers who have come a long way, have their own production facilities, a staff of competent engineers and, what is critically important, understand the technological chain not from textbooks, but from real requests from quarries and plants.

Mining and metallurgical equipment is the lifeblood and nervous system of these industries. And its quality is determined not at the moment of signing the acceptance certificate, but after years of uninterrupted operation under conditions of constant load, dust, vibration and human factor. Therefore, today it is not just a hardware seller that is valuable, but a technology partner who is capable of dialogue and bears responsibility for its products throughout its entire life cycle. And such partners, as a rule, grow out of companies for which this is their main and long-standing business, like those that have been working on the market for three decades.