--- title: Testing nozzles for Dust Suppression during tunnel boring description: SNE were consulted to test, identify and provide a solution to suppress dust for an unique application, the Brisbane Cross River Tunnel project. image: https://blog.spraynozzle.com.au/hubfs/Tunnel%20with%20Engineer.jpg --- [![Spray Nozzle Engineering Logo](https://blog.spraynozzle.com.au/hubfs/SprayNozzle_July2019/Images/sne-logo-wihite-width300px.png)](https://spraynozzle.com.au/) [![Enquire Now! or call 1800NOZZLE](https://hubspot-no-cache-ap1-prod.s3.amazonaws.com/cta/default/5864368/10905853-1917-4b01-91fc-72d008e9ee57.png)](https://hubspot-cta-redirect-ap1-prod.s3.amazonaws.com/cta/redirect/5864368/10905853-1917-4b01-91fc-72d008e9ee57) - [Home](https://spraynozzle.com.au/) - [Products](https://spraynozzle.com.au/products/) - [Spray Drying Nozzles](https://spraynozzle.com.au/product-category/spray-drying-nozzles/) - [Industrial Spray Nozzles](https://spraynozzle.com.au/product-category/industrial-spray-nozzles-and-accessories/) - 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Working with the onsite contractor, our Melbourne based Spray Nozzle Engineering team were tasked with testing what forms and varieties of spray nozzle would cater to this difficult, and very specific set of requirements.  The requirement was to suppress dust during the boring process, where a portable rig had to be to proceed alongside the boring machine as it progressed, whilst spraying a fine mist reaching minimally 5 meters from one side of the tunnel to the other. The mist had to not only reach the other side of the tunnel, but also collect fine particles of dust in order to suppress it, while contending with a constant draught running through the site, which had the potential to catch the fine droplets and thereby make the sprays ineffective. ![Test Nozzle VT2504](https://blog.spraynozzle.com.au/hs-fs/hubfs/Test%20Nozzle%20VT2504.jpeg?width=264&name=Test%20Nozzle%20VT2504.jpeg) The engineering team set about rigging up a testing station in the Melbourne Spray Nozzle Engineering wet test lab to simulate conditions in the tunnel. Performing a number of tests to ascertain what nozzle types would sufficiently fulfil all required criteria in order to effectively control the dust within the tunnel.  The team states: “We initially conducted tests within our wet room & used a series of hollow cone low flow misting sprays to knock-out smaller particles, which produced a throw of approximately 2 meters, contending with draught air moving droplets throughout the area, and narrow angle low flow flat fan sprays, also determined to throw 4-5 meters. We client tested both nozzle types and solved the issue more than adequately”. ![Test Nozzle VT2506](https://blog.spraynozzle.com.au/hs-fs/hubfs/Test%20Nozzle%20VT2506.jpeg?width=264&name=Test%20Nozzle%20VT2506.jpeg) See in the pictures here, some of the configurations setup in order to determine the effectiveness of the nozzles within the simulated conditions: ![Spray Pic HJ197 @ 1000mm-1-1](https://blog.spraynozzle.com.au/hs-fs/hubfs/Spray%20Pic%20HJ197%20@%201000mm-1-1.jpg?width=338&name=Spray%20Pic%20HJ197%20@%201000mm-1-1.jpg) Tunnel Experience Since the early 1990's Spray Nozzle Engineering have been successfully working with Tunnel Engineers on both environmental and special hazard deluge tunnel systems. Our unique [BETE  BJ Series Nozzles](https://spraynozzle.com.au/product-category/industrial-spray-nozzles-and-accessories/flat-fan-spray-nozzles/) with low wind drift, low clog maintenance free nozzles have been used and tested real time at Melbourne City Link Tunnel (Australia), Wellington Tunnel (New Zealand) and other major regional communications, mining and civil tunnels. [![BJ-Low-Flow-Sprayer-Nozzles-min-1](https://blog.spraynozzle.com.au/hs-fs/hubfs/BJ-Low-Flow-Sprayer-Nozzles-min-1.png?width=300&name=BJ-Low-Flow-Sprayer-Nozzles-min-1.png)](https://spraynozzle.com.au/product-category/industrial-spray-nozzles-and-accessories/flat-fan-spray-nozzles/) [BJ Nozzle - Low Flow -](https://spraynozzle.com.au/product-category/industrial-spray-nozzles-and-accessories/flat-fan-spray-nozzles/)*Just one of our many nozzle solutions*   Local testing advice and service make Spray Nozzle Engineering your first call for tunnel spray applications. [REACH OUT TO OUR TEAM OF EXPERTS HERE](http://spraynozzle.com.au/contact/) [![sne logoDarkBlue white shadow sm](https://blog.spraynozzle.com.au/hs-fs/hubfs/sne%20logoDarkBlue%20white%20shadow-1.png?width=400&name=sne%20logoDarkBlue%20white%20shadow-1.png)](http://spraynozzle.com.au/contact/) Coat • Spray • Clean • Conserve      [dust suppression tunnel boring](https://blog.spraynozzle.com.au/tag/dust-suppression-tunnel-boring), [Spray Nozzle](https://blog.spraynozzle.com.au/tag/spray-nozzle) #### Share This Story, Choose Your Platform! 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### Leading Spraying Specialist - [Spray dry nozzles](https://spraynozzle.com.au/product-category/spray-drying-nozzles/) for powder production - [Washdown system](https://spraynozzle.com.au/product-category/washdown-equipment/) - [Clean in place](https://spraynozzle.com.au/product-category/tank-cleaning-rotating-cip-gamajet/) (C.I.P) technology -  [Hose reel](https://spraynozzle.com.au/product-category/hose-reels/) handling systems - [Compressed air knives and safety air nozzles](https://spraynozzle.com.au/product-category/air-nozzles-air-knives-air-guns-and-silencers/) - Agricultural [spray nozzles](https://spraynozzle.com.au/product-category/agricultural-spray-equipment-and-valves/) - [Foaming](https://spraynozzle.com.au/product-category/foaming-and-sanitising/) and sanitising - [Industrial](https://spraynozzle.com.au/product-category/industrial-spray-nozzles-and-accessories/) spray nozzles ### Recent Posts ### Posts by Tag - [Industrial Spray Nozzles (31)](https://blog.spraynozzle.com.au/tag/industrial-spray-nozzles) - [Air Knives - Nozzles (23)](https://blog.spraynozzle.com.au/tag/air-knives-nozzles) - [Tank Cleaning - Rotating CIP (17)](https://blog.spraynozzle.com.au/tag/tank-cleaning-rotating-cip) - [Spray Nozzle (11)](https://blog.spraynozzle.com.au/tag/spray-nozzle) - [Washdown Equipment (5)](https://blog.spraynozzle.com.au/tag/washdown-equipment) - [Foaming - Sanitising (4)](https://blog.spraynozzle.com.au/tag/foaming-sanitising) - [Agricultural Spray Equipment (3)](https://blog.spraynozzle.com.au/tag/agricultural-spray-equipment) - [dust suppression (3)](https://blog.spraynozzle.com.au/tag/dust-suppression) - [Custom Spray Lances - Bars (2)](https://blog.spraynozzle.com.au/tag/custom-spray-lances-bars) - [gas scrubbing for pollution control (2)](https://blog.spraynozzle.com.au/tag/gas-scrubbing-for-pollution-control) - [gas scrubbing nozzles (2)](https://blog.spraynozzle.com.au/tag/gas-scrubbing-nozzles) - [silvent (2)](https://blog.spraynozzle.com.au/tag/silvent) - [Food Processing Cleaning & sanitising (1)](https://blog.spraynozzle.com.au/tag/food-processing-cleaning-sanitising) - [Water Monitors - Cannons (1)](https://blog.spraynozzle.com.au/tag/water-monitors-cannons) - [beete full cone nozzles (1)](https://blog.spraynozzle.com.au/tag/beete-full-cone-nozzles) - [conveyor dust suppression (1)](https://blog.spraynozzle.com.au/tag/conveyor-dust-suppression) - [dust suppression tunnel boring (1)](https://blog.spraynozzle.com.au/tag/dust-suppression-tunnel-boring) - [mining conveyor dust suppression (1)](https://blog.spraynozzle.com.au/tag/mining-conveyor-dust-suppression) See all #### Australia – Melbourne 1-8 27 Shearson Crescent, Mentone 3194 Phone: [+61 (3) 9583 2368](tel:+61395832368) Mobile: [1800 NOZZLE](tel:1800669953) Email: [sales@spraynozzle.com.au](mailto:sales@spraynozzle.com.au) #### Australia – Sydney Phone: [+61 (02) 9533 4690](tel:+610295334690) Mobile: [1800 NOZZLE](tel:1800669953) Email: [sales@spraynozzle.com.au](mailto:sales@spraynozzle.com.au) #### New Zealand – Pacific Rim 532 C Grey Street, Hamilton East, 3216 Phone: [+64 (7) 839 6444](tel:+6478396444) Mobile: [0800 NOZZLE](tel:0800669953) Email: [sales@spraynozzle.co.nz](mailto:sales@spraynozzle.co.nz) ©2018 Spray Nozzle Engineering | All Rights Reserved | [T&C](https://spraynozzle.co.nz/terms-and-conditions/) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Spray Nozzle Engineering Editor", "url" : "https://blog.spraynozzle.com.au/author/spray-nozzle-engineering-editor" }, "dateModified" : "2022-09-29T01:32:40.798Z", "datePublished" : "2022-09-29T01:32:40.000Z", "headline" : "Testing nozzles for Dust Suppression during tunnel boring", "image" : [ "https://blog.spraynozzle.com.au/hubfs/Tunnel%20with%20Engineer.jpg" ], "mainEntityOfPage" : { "@id" : "https://blog.spraynozzle.com.au/dust-suppression-whilst-tunnel-boring", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://blog.spraynozzle.com.au/hubfs/sne-logoDarkBlue-1.png" }, "name" : "Spray Nozzle Engineering / Reel Tech" } } ```