Category Archives for "English"

Oct 12

EOL Presents Moisture Resistant Noise-Lowering Material


EOL Presents Moisture Resistant Noise-Lowering Material

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One common challenge in underground mining is the amount of water and moisture, gathering in tunnels and shafts. Below ground, it becomes a constant obstacle in all aspects of the mining activities.  

Because of moisture, and due to its own characteristics, it has always been hard to enable noise-lowering material to perform well in underground mining, since it tends to attract moisture and then loses it´s performing capacity. 

Good functioning and energy efficient use of ventilation are the essence of what we strive for at EOL mining. Therefore we are now happy to present a new moist resistant material, which also has a strong capacity to reduce the sound from fans.

The component is made from 100% recycled material and is now monitored and in full use in the LKAB Kiruna mine. At this point we are very happy with the results. We are also very proud to be able to offer this product to existing and new clients around the world.

Aug 15

EOL Vent Mining Delivers Explosion Proof Fans To The Russian Arctic Circle


EOL Vent Mining Delivers Explosion Proof Fans To The Russian Arctic Circle

Every mine is unique - not only in terms of the material mined, but also concerning
prerequisites of the mining environment and its surroundings.

This is part of the everyday challenges for mining companies.

Few mines can use retail bought equipment for their activities. The same goes for the ventilations systems, which need to be customized to the often demanding mining environment. Radon, fumes, gas, and temperatures are factors that have to be considered.

In some mines where there is an elevated risk of explosions, a specially classified mining ventilation has to be installed. 

EOL Vent’s international assignments therefore often include the adaptation of equipment to national certificates and local standards, as well as deliveries of specially classified equipment. 

When national standards are fulfilled, the next step is for our ventilations on demand system to calculate all factors and variables of the mine, suggesting power where it is needed and a lower amount of power where it is not. 

In our new customer assignment the delivery goes to the Russian arctic circle, and the installation will have to consider the elevated risk of explosions. We are very glad for our good cooperation with both client and distributor, and proud to contribute with our ventilation technique in this mining project

EOL Vent Mining Wishes You A Pleasant Summer!
Jun 20

EOL Vent Mining Wishes You A Pleasant Summer!


EOL Vent Mining Wishes You a Pleasant Summer!

In this summer postletter, we would like to tell you about the exciting development work that took place during the winter. It is our ambition to be an innovative supplier and we can now offer a new type of heat exchanger that will significantly reduce the energy consumed while heating air in mines.

During the past winter, we developed a new type of rotary heat exchanger that, in tests conducted down to –20°C, could completely eliminate the need for additional methods for heating the supply air.

We were able to cover 100 % of the energy requirement for heating to +1°C when the exhaust air temperature was above +4°C, the outdoor air temperature was above –20°C, and the air flows were the same on both sides. Since delta-T becomes higher between exhaust air and outdoor air the colder it is outdoors, the rotor will be able to provide more energy since the exhaust air can be cooled more at colder outdoor temperatures.

This means that the solution can be used even at temperatures below –20°C.

”Rotary heat exchangers are a fantastic invention, and with our unique selection of materials and in-house control technology, we are also able to avoid the rotor icing over even in extreme cold and with 100% relative humidity in the exhaust air,” says Tomas Bolsöy, innovator and owner of EOL Vent Mining.

In the described tests, the heat exchanger delivered with a temperature efficiency of 87%. In most cases, temperature efficiency is a good indicator of a heat exchanger’s efficiency. In mining ventilation, however, the supply air usually only needs to be heated to just above freezing to prevent the water from turning to ice in the shafts. A better KPI for showing the heat exchanger’s efficiency is therefore to calculate the energy efficiency in different operating conditions.

So far, and in the temperature conditions of winter last year, we have managed to show 100% energy efficiency.

In order to maintain a high seasonal efficiency over time, the system needs to both provide good output at different temperature intervals and be able to defrost efficiently. When the large masses of exhaust air meet the cold outdoor air, condensation forms, and there is a risk that ice will build up in the rotator. We eliminate ice formation using sensor technology that in less than two minutes reduces the rotation speed until the ice no longer forms and the condensation water drains as usual.

”We are very proud of the results we have documented and that we are now taking even more sustainable technology to the market,” says Samuel Kaartokallio, Project Manager at EOL Vent Mining.

In addition to the heat exchanger we are now launching, we have also worked on the development of related condensation-resistant silencers for exhaust air. This technology is sustainable and is based on smart design and recycled materials. It features both high sound-absorbing properties and high moisture resistance. We look forward to sharing more about this technology in the fall.      

We spend a lot of time every day adapting our products to each unique delivery. This leads to many strong customer relationships and a high degree of knowledge sharing. We are grateful for this, and in addition to providing us with friends all over the Nordic region and the world, it also gives us the opportunity to continue to innovate and offer products that strengthen the mining industry.

Tests show that our new rotary heat exchanger for mines is able to cover 100 % of the power requirements for heating at down to –20°C outdoor temperatures without ice build-up, even at 100 % relative humidity in the exhaust air.

May 01

New Head Office Provides Space For Further Development


New head office provides space for further development

EOL Vent Mining recently moved into its new head office in Kiruna. The premises are also housing a new workshop where EOL will continue its development of ventilation technique for the mining industry. CEO Samuel Anderzén is very pleased with the changes so far.

-Our move to a new address means we will have the space needed for offices and workshop. As we are growing, the premises have to follow. Now we are looking forward to a stabilization of the pandemic, when we will be able to welcome customers and colleagues to our new location, says Samuel Anderzén.

The new head office is situated in Lastvägen 51, Kiruna.

Mar 03

Welcome To Our New Colleague Samuel Kaartokallio


Welcome To Our New Colleague Samuel Kaartokallio

At EOL we are happy to welcome our new colleague Samuel!

Samuel is the new Project Manager for distributing EOL’s new type of rotary heat exchanger and condensation-resistant silencers for exhaust air.

In parallel to work, Samuel is studying to become an Electricity and Automation engineer, graduating in spring 2022. In 2019, Samuel made the decision to leave Lahti in Finland to start a new life in Kiruna. The north of Sweden has been familiar to Samuel since childhood, with a mother and grandparents coming from Gällivare. 

 After graduating from technical high school with a master in Automation for real estate, he decided to move north from his town of birth. Due to a job offer from LKAB and a large network in Kiruna, he made the decision to move even further from home, across the Baltic sea to the north of Sweden. In LKAB Samuel had a role within Electricity and automation maintenance.

Due to the pandemic, Samuel’s work start has been very different. Still, he appreciates the warm welcome from his new colleagues and looks forward to all the new things he will learn at EOL.

- I’ve always had a big interest in problem solving, to find the solution to tricky situations. When I was young, I had a big interest in motors and motorsport. This path led me into the automation sphere where I found a great outlet for my interests, Samuel says.

Right now, Samuel doesn’t have much spare time due to the double load of work and study. When he does have the time, he likes to spend it out in nature, hunting and driving snowmobiles. But right now, what he is looking forward to most is to develop his skills in mining ventilation.