cleaning equipment from dust

When they talk about cleaning equipment from dust, many people imagine a guy with a vacuum cleaner or compressed air who passes through the workshop once every six months. In fact, this is an ongoing, almost philosophical process, where the slightest mistake in approach can destroy an expensive machine or, worse, lead to downtime. This is especially felt in production, where the dust is not household, but industrial - abrasive, metallic, often with magnetic properties. This is where standard methods fail.

Why conventional methods do not work in serious production

Let's take mining equipment, for example. There, dust is not just dirt, it is small particles of ore, a ferromagnetic suspension that literally eats into the nodes. Blow with compressed air? It’s possible, but you’ll only raise a cloud that will settle back, and some will fly into the bearings or cooling systems. Wet cleaning? Often prohibited due to the risk of corrosion and short circuits. It turns out to be a vicious circle.

I remember how at one of the facilities they tried to fight dust on electromagnetic separators with ordinary brushes. The result is scratches on the working surfaces, a decrease in separation efficiency and, ultimately, a drop in the quality of the concentrate. It turned out that dust containing magnetic particles was attracted back with a vengeance after such rough cleaning. I had to rethink the whole approach.

It is under such conditions that it becomes clear that cleaning is part of MRO, not cleaning. You need to understand the physics of the process: the nature of the dust, the design of the equipment, acceptable methods of exposure. Without this there is only harm.

Magnetic dust: a separate story and non-obvious solutions

The most difficult case is equipment that itself works with magnetic fields, or is located in workshops where such dust is generated. For example, separators or crushers. Here, the usual method of cleaning equipment from dust is not just useless, but harmful. Magnetic particles form dense, difficult-to-remove deposits.

One of the working methods that we have tested is the use of special magnetic shields or removable casings. They can be removed and cleaned separately without touching the unit itself. But this requires competent design at the installation stage. The companyLONGI Corporation, which specializes in mining equipment, some models of separators provide this. On their websitehttps://www.ljmagnet.ruyou can see how well the design is designed for service. By the way, they have been in the field since 1993, and such experience can be felt in the little things.

Another point is dust suppression at the source. It is often cheaper and more effective to not clean rather than let the dust fly around. Local exhaust hoods, irrigation with water under pressure (where permissible) or the use of special dry fogs help here. But this is an engineering system, and not a one-time event.

Tools and materials: what to clean so as not to break them

It all depends on the surface. For electrical cabinets - antistatic brushes and vacuum cleaners with HEPA filters. For mechanical parts, perhaps soft natural bristle brushes and special solvent cleaners that do not leave a film. No rags with lint, which are then left on the contacts.

To remove stubborn deposits, especially oil dust, special adsorbent gels are sometimes used. They are applied, absorb dirt, and then removed. Expensive, but for precision equipment it’s the only option. It is important to always check the manuals from the equipment manufacturer. The same LONGI always has a section on maintenance and cleaning in equipment passports - this is the bible for a mechanic.

And yes, vacuum systems with cyclone separators are our everything for workshops. But they also need to be maintained regularly, otherwise their efficiency drops to zero. I have seen situations where they forgot to clean them, and they turned into a simple pipe, chasing the same dust around.

Organization of the process: from schedule to responsibility

The biggest mistake is to clean equipment from dust “as needed”. The need arises when it is already too late. We need a clear schedule tied to engine hours. Moreover, it can be different for different components of the same unit. Fan motor - once a week, complex electromagnetic unit - once a month, but with full diagnostics.

It is important to specify not only “what to do?”, but also “what to do?”, and “who is responsible?”. It is ideal when each site is assigned a person who knows its characteristics. He will be the first to notice that dust has begun to accumulate differently or that an uncharacteristic color of deposits has appeared (which may indicate, for example, the beginning of bearing wear).

We had the unfortunate experience of being outsourced to third party cleaners without any training. They conscientiously washed the control unit with water... Expensive repairs and a week of downtime became the best training tool for the entire workshop. After this, we developed simple, visual instruction cards for each piece of equipment.

Not only cleanliness, but also diagnostics

The cleaning process is the ideal time for a visual inspection. When the casing is removed and the dirt is removed, cracks, oil leaks, loose fasteners, and corrosion are visible. You can understand a lot from the nature and composition of dust. For example, abundant copper dust near the current collectors is a signal of brush wear. Black, oily dust on the engine - the oil seal may be starting to leak.

Therefore, a good specialist not only cleans, but keeps something like an observation log: “When cleaning the SMBS-100 separator, an increase in the amount of magnetic fraction in the dust on the left side of the drum was noted.” This is already data for the technologist or repair team. You turn a routine operation into an element of predictive analytics.

As a result, proper cleaning is not an expense item, but an investment in uninterrupted operation. It saves on repairs, preserves the life of equipment and, ultimately, affects the profitability of the entire production. Especially at one like LONGI, which produces thousands of units a year and obviously applies the same principles to its own production lines. Everything is interconnected.