Dedusting systems for tunnel excavation and mining

Dedusting systems for tunnel excavation and mining 


Tunnel excavation or mining require specific air treatment to maintain pollutant levels within the limits of the law.

The dense presence of dust in these sites can seriously harm the health of workers, pollute the environment and compromise the proper functioning of the machinery used.

The issue of air treatment in tunnels and mines during the excavation phases is regulated by specific laws issued by each country. These set out responsibilities, means and limits to be complied with to safeguard workers' health, the environment and equipment.

The main applicable regulations in Italy are the Consolidated Law on Safety at Work 81/2008, the Consolidated Law on the Environment 152/2006, the Machinery Directive 2006/42/EC, and the ATEX Directive 2014/34/EU.
 

Montes solutions for air treatment
in tunnels and mines

In order to address the air quality issues in underground construction sites, specific ventilation systems are required to meet the requirements of the law.
A tunnel or mine ventilation system during the excavation phases is an articulated system composed of different parts: fans, distribution ducts, dedusting systems, and regulation and measurement systems.
 
At Montes, we are specialists in the design and production of dedusting systems made to customer specifications for any type of pollutant, including in explosive environments (ATEX M2 certification) and for conventional (roadheaders, hydraulic hammers, explosives) or mechanized (TBM) excavation techniques.

Conventional excavation dedusters are air filtration systems capable of operating autonomously in support of primary ventilation systems. This solution ensures maximum flexibility and the proper treatment of all types of dust. Conventional excavation filtration systems are mobile and can be placed in strategic points at the site for effective dust collection straight from the source.
 
Mechanized excavation dedusters are installed on TBMs to dedust the air drawn in by the rotating head and related equipment. They are custom-designed to fit perfectly into the backup section on the TBM and connected to the air intake and discharge piping.
 
The solutions available to treat any type of dust (silica, gypsum, limestone, asbestos, coal, etc.) in tunnel excavation and mining are:

 

  • TBM (Tunnel Boring Machine) dedusters to be mounted on the backup
  • Dedusters for conventional excavation methods (roadheaders, hydraulic hammers, explosives)

Montes: the system realization phases


Engineering

Engineering

We have not standard solutions and we design and build customised systems.

Production

Production

We operate in accordance with the UNI ISO 9001:2015 Quality Management System standard.

Installation and inspection

Installation and inspection

We organize the work site completely autonomously, installing any temporary works.

After-sales service

After-sales service

Our after-sales service provides assistance to Customers in problem solving. From the maintenance of their systems to the staff training.

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Our Works

  • Rigid duct for main ventilation
    during excavation of railway tunnel

    Italy | Alto Adige
    Air flow 420 Nm³/s
    COR-TEN steel duct size 5.890 x 3.200 x L=86 mt
    Average installation height 15 mt

  • TMU deduster
    for roadheader tunnel excavation

    Switzerland
    Albula tunnel
    Air flow 12 Nm³/s
    -

  • TMU deduster
    for roadheader tunnel excavation

    Italy | Liguria
    Air flow 12 Nm³/s
    Mixed dry/wet filtration system
    -

  • TMU deduster
    for TBM tunnel excavation

    Canada
    Air flow 8 Nm³/s
    Centrifugal fan
    -

  • TMU deduster
    for TBM tunnel excavation

    Philippines
    Air flow 8 Nm³/s
    Multi screw conveyor for dust collecting
    -

  • TMU deduster
    for roadheader tunnel excavation

    Israel
    High speed railway Jerusalem-Tel Aviv
    Air flow 20 Nm³/s
    -

  • TMU deduster
    for potassium extraction with roadheader

    USA | New Mexico
    Potassium mine
    Air flow 32 Nm³/s
    -

  • TMU deduster
    for TBM tunnel excavation

    China
    Qingdao metro tunnel
    Air flow 8 Nm³/s
    Second delivery

  • TMU deduster
    for roadheader tunnel excavation

    Canada
    Air flow 28 Nm³/s
    Dust collecting system with
    double screw conveyor

  • TMU deduster
    for TBM tunnel excavation

    China
    Qingdao metro tunnel
    Air flow 8 Nm³/s
    First delivery

  • TMU deduster
    for roadheader tunnel excavation

    Italy | Alto Adige
    Air flow 16 Nm³/s
    -
    -

  • TMU deduster
    for gypsum extraction with roadheader

    Italy | Piemonte
    Gypsum mine
    Air flow 2,7 Nm³/s
    Redler for dust collecting

  • TMU deduster
    for TBM tunnel excavation

    Italy | Calabria
    Scilla Power Line tunnel
    Air flow 10 Nm³/s
    Redler for dust collecting

  • TMU deduster
    for TBM tunnel excavation

    Turkey
    Istanbul Metro
    Air flow 6 Nm³/s
    ​Redler for dust collecting

  • TMU deduster
    for roadheader tunnel excavation

    Italy | Liguria
    Genova Principe railway junction
    Air flow 16 Nm³/s
    -

  • TMU deduster
    for roadheader tunnel excavation

    Italy | Veneto
    Galleria SP 1 di Sinistra Piave
    Passante del Col Cavalier
    Air flow 25 Nm³/s

  • TMU deduster
    for roadheader tunnel excavation

    Italy | Liguria
    Genova Principe railway junction
    Air flow 16 Nm³/s
    -

  • TMU deduster
    for TBM tunnel excavation

    Italy | Trentino
    Hydraulic tunnel Mezzolombardo
    Air flow 3 Nm³/s
    -

  • TMU deduster
    for gypsum extraction with roadheader

    Italy | Piemonte
    Gypsum mine
    Air flow 18 Nm³/s
    Power 95 kW

  • TMU deduster
    for TBM tunnel excavation

    Turkey
    Suruc Water Tunnel Project
    Air flow 8 Nm³/s
    -

  • TMU deduster
    for TBM tunnel excavation

    Iran
    Hydraulic tunnel
    NOSUD 1 Project
    Air flow 8 Nm³/s

  • TMU deduster
    for tunnel excavation with explosives

    Italy | Emilia Romagna
    A1 highway “Variante di valico BO-FI”
    Air flow 30 Nm³/s
    -

  • TMU deduster
    for gypsum extraction with roadheader

    Italy | Piemonte
    Gypsum mine
    Air flow 2,2 Nm³/s
    Redler for dust collecting

  • SCRO horizontal scrubber for asbestos
    dust from tunnel excavation

    Italy | Sicilia
    Catania railway tunnel
    Air flow 21 Nm³/s
    Power 110 kW

  • TMU deduster
    for TBM tunnel excavation

    Hong Kong
    Tsuen Wan Tunnel
    Air flow 7 Nm³/s
    ATEX M2 certification

  • Filter for welding fumes
    from TBM reparation

    Italy | Lombardia
    Brescia Metro
    Air flow 1,66 Nm³/s
    Power 7,5 kW

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Our streamlined, flexible organization can plan, execute and control all the stages, from design up to after-sales service.

 Via XX Settembre 33
37032 Monteforte d'Alpone (VR)
Italy

 info@montes.it

 +39 045 610 02 14