coal reclaim tunnel ventilation design requirements

Underground Mine Ventilation Technical Aspects of Mining

The secondary ventilation system distributes air to different parts of the mine as required using auxiliary fans which are almost exclusively of axial-flow design aided by walls and regulators which prevent air from leaking into areas where limited or zero volumes are required...

A Discussion on the Effective Ventilation Distance in Dead

their results cannot be directly transferred for dead-end tunnel ventilation Sasmito et al 16 performed a computational study on gas control in a room and pillar coal mine ToraƱo et al 2009 17 modeled methane behavior but did not consider blasting gases in coal mines ancillary ventilation...

Application of Tunnel Boring Machines in Underground Mine

As shown in Figure 3 the access tunnel Adit 1 is being driven at an azimuth of 208 176 with a plus 1/2 vertical grade approximately 5 650 m to reach the reef Figure 3 East Boulder Project The tunnel geology consists of approximately 1 006 m of sediments 2 530 m of gabbro 430 m of norite 1 140 m of anorthosite 335 m of olivine gabbro and...

Tunnel Ventilation Fans

For many years tunnel ventilation system design engineers have prepared specifications for fans and associated equipment that included the requirements of The National Fire Protection Association NFPA Standard 130 which is the standard for Fixed Guideway Transit and Passenger Rail Systems...

PDF Ventilation planning and design of the Omerler B mine

single manual longwall for annual production of approx 16 mtpa of coal Future ventilation necessary ventilation requirements with long-term demands an appropriate design of a tunnel...

Lightening Ventiltion Dust control Safety And Safety in tunnel

Apr 18 2017 0183 32 Lanterns and Lamp Burning Oil 2 Coal Gas Lighting 3 Acetylene Gas Lighting 4 Electric Lighting 6 Ventilation Ventilation means technique of providing fresh air inside the tunnel during and after construction The ventilation of tunnel is necessary due to following reasons - 1 To furnish fresh air for the workers 2...

Guidelines MDG 28 Safety requirements for coal stockpiles

recover systems in reclaim tunnels 2 The design and implementation of safety measures for dealing with hazards associated with reclaim tunnels and stockpiles will be influenced by the processing capacity material characteristics and operational requirements relevant to the coal operation...

Basic Mine Ventilation

The quantity of air reaching each working face where coal is being cut mined drilled for blasting or loaded shall be at least 3 000 cubic feet per minute unless a greater quantity is required in the approved ventilation plan The quantity of air passing through the last open crosscut shall be at...

Ventilation System in Tunnel during Construction Works

The axial fan or the centrifugal fan is used for the ventilation system in tunnel Figure 43 shows them Flow of air Schematic drawing of axial fan Schematic drawing of centrifugal fan Figure 43 Fans for tunnel ventilation 52 Ventilation pipe Ventilation pipes used in tunnel are classified into hard pipe and soft pipe Steel pipe...

Conveyor Tunnel Ventilation

Jul 26 2007 0183 32 We are going to install a reclaim belt conveyor in a concrete tunnel below a crushed iron ore stocKpileThe reclaim is performed automatically by a plow feeder The presence of personnel is only for inspection and maintenance The tunnel is about 600m long with a cross section of about 10 square metersWe would like to get some reccomandation about the ventilation airflow possibly based on...

GUIDE FOR TUNNELLING WORK

Tunnelling work includes constructing a tunnel and supporting systems and associated temporary work A supporting system means a system necessary to construct the tunnel for example a ventilation system A tunnel is defined in the WHS Regulations as an underground passage or opening that is...

Title VUMA Ventilation of Underground Mine Atmospheres

Effective tools are essential for the practical and efficient design of mine ventilation and cooling systems and to enable both the development and the interactive simulation of mine layouts To satisfy these requirements the VUMA-network simulation program has been developed as a joint initiative by the South African Council for Scientific and...

Maximum Safe Egress Distance in Conveyor Tunnels

The methodology used in this study was to review the legislation standards codes and guidelines that are often used during the design of coal reclaim tunnels and determine their relevance The relevant stakeholders were then consulted to determine any specific requirements for the design of the reclaim...

Plant Design Trends in Coal Pile Design

Mar 01 2008 0183 32 The key elements of the final design were a longitudinal stockpile and a rail-mounted bucket-wheel machine Figure 4 that can stack coal at 1 500 tph and reclaim it at 2 200 tph...

Tunnel Ventilation Tunnels Howden

Good ventilation is an essential part of the planning process for modern tunnel design In road and rail tunnels where passenger safety and comfort is essential it is important to plan the ventilation...

Reclaim Tunnels

Reclaim Tunnels Hoffmann offers below and above grade tunnels The tunnel size is based on reclaim equipment personnel access and maintenance requirements...

Examination paper

The reclaim tunnel is of concrete arch construction and is fed by six 6 coal valves from the clean coal stockpile It delivers coal via conveyor to a train loading bin Details of some key characteristics are in the table below Characteristics Reclaim Tunnel Secondary Egress Length 200m 80m Date Commissioned 1970 2000 Gas Monitoring CH 4...

Ventilation

Ventilation Good quality air has to be provided for personnel to breath to dilute both natural and introduced eg diesel exhaust gases to dilute or carry away...

ENGLO Applications

Coal Reclaim Tunnel Ventilation Modular Approach Englo modular approach tailors the equipment to the application with adaptable Modules on the inlet and outlet of the Englo unit to adapt to dust loading requirements and efficiency objectiv...

Heat Treatment and Ventilation Optimization in a Deep Mine

The current ventilation system in the 1118 m pit mine in the Jinqu Gold Mine is optimized with regard to the ventilation line network layout and broken area of ventilation tunnel and consists of the following improvements 1 reasonably optimizing downhole ventilation line expanding 280 m horizontal diameter 025 m air return guide hole...

What are the Installations Required in a Tunnel

The tunnel uses more than 2 000 lamps for illumination and 104 fans for ventilation while 75 km of sensor cables are installed for automatic fire monitoring and two ventilation buildings with ventilators assure a complete exchange of air in 10 minut...

Examination paper

The Coal Handling and Preparation Plant Manager has asked you to formulate a Reclaim Tunnel Management Plan addressing the requirements of MDG28 and the associated hazards in the tunnel a Outline your understanding of reclaim tunnels by identifying and...

How to design and improve stacking and reclaiming systems

In determining coal yard design the receiving capacity and loadout capacity must be taken into account as well as the stockpile volume where the cost/benefit ratio must be closely studied Methods of stockpiling are described including overhead stockpiling conveyor and reclaim tunnel stacking tube/single discharge longitudinal pile with...

Mine and Tunnel Ventilation New York Blower Company

Contact your local representative to speak about your specific mine and tunnel ventilation requirements or to request a quote Resources Global Mining Review January/February 2020 - Steve Back discusses important selection criteria when evaluating ventilation systems for underground min...

Resources Regulator publication

Mining Design Guideline MDG 3608 for Fire Resistant Anti-Static FRAS materials requires that any component of the ventilation system of an underground coal mine and any conveyor belting and conveyor accessories used at an underground coal mine or in a reclaim tunnel at a coal mine must be FRAS clause 87...

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