Therefore, ultrasonic atomizer improves the efficiency of combustion, reduces the discharge of smoke and nitrogen oxide, which saves energy. However, it has complicated mechanism, which in the way of applications. For ultrasonic atomizer burners can be divided into two kinds by the different sources of ultrasonic sound, which is electric power and fluid. The atomizer ultrasonic generator of tungsten carbide ultrasonic atomizing nozzle is independent of the outside provided separately. The principle is that when the fuel from liquid into the tube, under surface tension and the impact of affinity, after the formation of a thin film is atomized.

This atomizer has wide adjustment range, compact structure and is suitable for small oil atomizer, but requires a higher solid exterior electrical equipment cost. While another tungsten carbide hydrodynamic ultrasonic atomizer ultrasonic generator is on the nozzle, and the principle is take advantage of high-speed jet ejected impact excitation resonant cavity vibrate, generating high-intensity sound waves, resulting in fuel injection zone and the combustion zone provide a gas acoustic vibration, to achieve efficient combustion and obtained atomized. Processing capacity due to its wide range of operating pressure, and when the air flow is subsonic or supersonic conditions, can get higher sound pressure, nozzle structure is relatively simple, low cost, and therefore have broad application prospects.





















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Carpentaria Exploration Ltd continued work at its Broken Hill tin and tungsten project north of Broken Hill in NSW, which contain the historical Euriowie, Waukeroo and Kantappa Tin Fields, and the Yanco Glen scheelite (tungsten) deposit 40 kilometres north of Broken Hill. In 2012, Carpentaria undertook a drilling program at Yanco Glen to confirm the previous resource and test possible extensions. In October 2012 the company announced updated Inferred Resources of 3.4 Mt at 0.11% WO3, using a 0.05% WO3 cut-off, for a contained 3.95 kt of WO3, doubling the previous amount of tungsten. At the Yanco Glen deposit tungsten is present as scheelite and minor wolframite in stratabound mineralisation, occurring within high-grade gneiss (metavolcanic precursor?) and metasediments of the Paleoproterozoic Broken Hill Group. Carpentaria have been undertaking metallurgical test-work as well as a mining scoping study.



 

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Cullen Resources has recently completed three exploration drill holes testing targets in the Doyenwae and Trig Orr prospects of its Minter Project area about 50 kilometres northwest of West Wyalong in central NSW. Target areas were based on previously identified wolfram (tin and arsenic) geochemistry anomalies from soil sampling and prior shallow drilling. The company is targeting tungsten stockwork and vein-type mineralisation associated with granite cupolas of the Silurian Kikoira Granite. Drilling in 2012 intersected multiple scheelite-bearing quartz veins in sediments. Higher grade intercepts included one metre at 0.70% WO₃, 4.05 metres at 0.58% WO₃ and 1.4 metres at 136% WO₃. Cullen indicated in March 2013 that it was seeking a farm-in partner.



 

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In April 2008, Peel Exploration Ltd (Peel) released an Inferred resource estimate of 1.29 Mt at 0.61% WO₃ and 0.05% Mo, at a cut-off of 0.2% WO₃ equivalent, for the Attunga deposit 20 kilometres north of Tamworth in NSW. Peel followed this up in 2010-11 with a study to investigate development options which indicated conditions were favourable for a low capital expenditure operation. Mineralisation at Attunga occurs within skarns developed at the contact of a lime-rich sequence with the Permian-Triassic Inlet Monzonite. In late 2012 Peel indicated it had begun a review of the Attunga deposit and was seeking potential joint venture or off-take partners. In August 2013 Peel completed one diamond drill hole for metallurgical test-work.



 

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