TELESTO Mist Systems. Dust Neutralization & Control Applications in Mining and Power Generation Industry

Transcription

1 TELESTO Mist Systems Dust Neutralization & Control Applications in Mining and Power Generation Industry

2 TELESTO the company Polish company located in Warsaw Employs over 30 people in R&D, production and sales Uses TELESTO water mist technology for various applications including dust suppression Designs and installs dust suppression systems in power plants, heat&power plants, mining and other industries

3 Consequences of Dust Exceeding Acceptable Limits Health and Worker Safety Issues Equipment Maintenance Problems Threat of Explosion

4 Coal, rock, mineral-based materials Biomass as well as alternative fuels Waste Sources of Dust: Processing and Transportation of:

5 Current Methods of Dust Suppression & Their Issues Vacuuming Systems Installations are relatively expensive Usable for only certain types of dust Require hermetic covers of chutes Sprinkler Systems Not very effective due to large droplets Significant increase in the level of moisture in the material

6 Water mist parameters Well dispersed water created tiny droplets that have a large total surface area which gives them a huge surface of effective contact with dust particles.

7 TELESTO Technology TELESTO water mist is generated in special nozzles that use water and compressed air TELESTO water mist has kinetic energy that allows it to travel a substantial distance even in open space Suppression/Control of dust is possible at the source of emission via grouping of dust elements into larger agglomerations Droplet Size at Below 15 microns Mist Stream w/ High Kinectic Energy Effective Dust Suppression/ Control

8 The Relationship Between Droplet Size & Dust Control Effectiveness Clickon theimageto stop and start theanimation Clickon theimageto stop and start theanimation Smaller droplets agglomerate dust particles more efficiently that big drops.

9 TELESTO Key Benefits Worker Health & Safety Improved work conditions Higher productivity Less staff downtime/turnover Machinery Maintenance Less wear & tear on machinery Lower maintenance costs, higher uptime Longer equipment life Overall Facility Lower risk of explosion & fire Costs of downtime minimized Less loss of resource/higher quality of resource

10 TELESTO Technology Flexibility of Installation Ecologically Neutral Technology Ability to control amount of water used from minimal water usage w/ no effect to resource up to higher levels of water use which increase the level of moisture in the resource (in some cases this is desirable)

11 Mining applications

12 TELESTO can be effectively used in mines to: Reduce dust content in the air inside the mine corridors Fight dust directly at the miner, where material is being extracted Suppress dust on conveyor belts when its transported Reduce dusting at transfer chutes both under and on the ground

13 Typical location of TELESTO system in long wall underground mine TELESTO KoMeT Water Mist System TELESTO set of screens

14 TELESTO KoMeT Water Mist System for dust suppression in the air in main corridors

15 Drawing of dust collecting screen

16 Telesto System in coal mine KoMeT

17 TELESTO Dust collecting screen

18 TELESTO dust supression in gold mine (Harmony Gold, South Africa)

19 Efficiency confirmed by KWK Halemba authorities (Polish coal mine from Kompania Weglowa S.A. group) Intensity of dust setting in g/sqm x d Recommended amount of rock dust to keep non-explosion atmosphere BEFORE SYSTEM INSTALLATION AFTER SYSTEM INSTALLATION

20 KWK Zofiówka (Polish coal mine) measurement made by KD Barbara Places of intensity of dust settling measurment Instensity of dust settling Mine dust Coal dust Noncombu stible particle s g/sqm/ day g/sqm/ day g/sqm/ day g/sqm/ day Before system installation After system installation

21 TELESTO KoMeT Water Mist System for dust reduction at chutes

22 TELESTO KoMeT Water Mist System for dust reduction at chutes

23 TELESTO TDNF surfactant dosing unit In oder to increase the efficiency of dust supression a special chemical is used to enchance the water dispersion by reducing the surface tension of water drops. A special dosing station is available to go with a system.

24 Reducing dust in coal mines TELESTO has developed a system used for dust reduction in the air inside the mine corridors. It has been installed in Poland and South Africa. The system has been awarded locally in Poland for its effect on the improvement of heath and safety conditions in the mines. Additionally, reduction of temperature of 2-4 o C is observed which is of crucial importance in deep mines, incl. gold mines.

25 KWK Halemba training for safety inspectors

26 Dust suppression simulation System running System not running

27 Solution for places where compressed air is limited - single fluid head

28 Single fluid dust suppression lance

29 Single fluid dust suppression lance

30 Single fluid dust suppression lance

31 Telesto KoMeT summary of benefits Significant airborne dust removal and reduction of coal dust build-up in the long wall corridors, around chutes and on the route along which coal is transported, Slight increase of air humidity, Increased levels of worker health and safety Significant lowering of the risk of black lung disease, Improved working conditions thanks to a reduction in ambient air temperature (in the area of system operation (around 2 to 4 deg C)) Lower risk of fire, Lower risk of explosion, Cost savings on mineral dust, Easy installation and maintenance.

32 Data required to design a proper system for a particular long wall mine Dimensions of the corridor (width, height, shape, etc) Velocity of air (meters/second) and possible variations Air humidity Dust concentration (grams/cubic meter)

33 Another areas of application for TELESTO water mist systems

34 TELESTO dust supression applications: Mines (coal, gold, etc) Power plants Heating plants Wood and stone processing Waste processing Other industrial plant where excessive dust is a problem

35 Loading cars with coal Without the system the dust quickly covers the whole car With the SCRUBmist system the dusting is effectively limited

36 Dust Neutralization using TELESTO technology in a Wood Splitting Machine, when loading material

37 Conveyor belt and transfer chute protection

38 Conveyor belt and transfer chute protection

39 Dust Neutralization in biomass processing and rock mines

40 Loading and trucks, renovations of equipment

41 Chosen TELESTO dust suppression installations in Poland Elektrownia Połaniec S.A. power plant ZE PAK S.A. - Elektrownia Adamów power plant Elektrociepłownie Wybrzeże - Gdańsk (EDF Group) heat and power plant Elektrociepłownie Wybrzeże - Gdynia (EDF Group) heat and power plant Elektrownia Rybnik S.A. power plant Kompania Węglowa S.A. KWK Halemba coal mine Katowicki Holding Węglowy S.A. - KWK Wujek Ruch Śląsk - coal mine Katowicki Holding Węglowy S.A. - KWK coal mine JSW S.A. - KWK Zofiówka coal mine

42 TELESTO SA Ludwinowska Warszawa, Poland