1 / 18

MINTEQ INTERNATIONAL, INC.

MINTEQ INTERNATIONAL, INC. Advanced Self-Flow & Shotcrete Materials Compared to Traditional Gunnite. GUNNITE NOZZLE.

roz
Download Presentation

MINTEQ INTERNATIONAL, INC.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MINTEQ INTERNATIONAL, INC. Advanced Self-Flow & Shotcrete Materials Compared to Traditional Gunnite

  2. GUNNITE NOZZLE Dry Material is pnuematically conveyed through large hose. Water is introduced and mixed with material at the nozzle via a water ring. Water addition is controlled via a valve at the nozzle.

  3. Refractory Gunnite Features • Simple Equipment, Easy Set Up • Nozzle can be up to 1000 ft. horizontally or 500 ft. vertically from the gun • Water added at the nozzle • Water addition ( and product quality ) is controlled by the nozzle operator. • Highly variable. • Subject to operator expertise. • Water / Material Mix time • Very dusty • Allows for castable refractory to be installed without forms • High Rebound & Waste ( 15 – 20 % ) • Slow Installation Rates • Average 2 tons per hour out of one machine if working efficiently • Physical properties very limited

  4. PRODUCT TECHNOLOGY OPTISHOT LOW MOISTURE, LOW ACCELERANT SHOTCRETE CASTABLES

  5. THE SHOTCRETE PROCESS • Thoroughly Mix Material • Pump Material • Add Air/Accelerator at Nozzle • Nozzle/Application Technique • Curing/Dryout

  6. Shotcrete System Dry Material + Measured Water Added to Mixer NO DUST, Minimal Rebound at Nozzle accelerator pump 750 cfm air mixer/pump

  7. SHOTCRETE NOZZLE Castable is mixed with pre-measured water in a high intensity pan style mixer and conveyed to the nozzle via a high pressure concrete pump. At the nozzle, compressed air and minimal accelerator are introduced to the material.

  8. MINTEQ Refractory "Shotcrete" Technology • Most Advanced Dispersant Technology • Critical Raw Material Selection • Reduced H20 resulting in: • lower porosity • improved physical properties

  9. WATER LEVEL IMPLICATIONS • High Water Levels Required to Install Gunnite and Competitive Shotcrete Materials Reduce Strength and Increase Porosity • High Water Levels Require High Accelerator Levels

  10. OPTISHOT PRODUCTS • Low Water Demand Equates to Very Low Accelerator Demand • Minteq’s Shotcrete Materials Retain Their Cast Properties • Minteq’s Materials Were Designed as Shotcrete Materials From The Start

  11. OPTISHOT PRODUCTS • Lowest Water Content • Lowest Porosity • Highest Strength • Best Abrasion Resistance • Best Chemical Corrosion Resistance

  12. Higher Water Contents Create Higher porosity has a negative effect on: Strength Corrosion Resistance Alkali Penetration

  13. REFRACTORY TECHNOLOGY • Why Does Minteq Material Succeed When Competitors Fail? • Superior Technology • Products • OPTISHOT MATERIALS • STARSLICK • System • PROCESS CONTROL • ENGINEERED INSTALLATION EQUIPMENT & FIELD EXPERIENCE

  14. SHOTCRETE PROCESS CURING/DRYOUT • Low Moisture Castable • 12-24 Hour Cure at Room Temperature (60-90°F) (not necessarily ambient) • Standard, Controlled Dryout • Dryout Schedule With Hold Points • FAST FIRE Shotcrete products allow for rapid dry-out / no hold periods

  15. MINTEQ Shotcrete Features • Rapid Installation Rates • 8-10 Tons Per Hour Through 1 Pump/nozzle • Improved Performance • “Cast” Lining System Without The Time Consuming Forms • No Dust • Minimal Rebound ( typically 2-5 % ) • FAST FIRE Shotcrete Products Allow for Reduced Dry-out Time • All Products Must Pass a Pumping Test • All Products Must Pass A Room Temp Workability Test ( >3 Hours ) • All Products Must Pass A Hot Stability Test ( > 90 minutes @ 90 F ) • All Technical Data Processed on Actual Pumped & “Shot” Panels

  16. MINTEQ Shotcrete Benefits & Customer Value • Improved Refractory Life / Furnace Performance • “Cast” Lining System Without The Forms • Reduced Refractory Waste During Installation • Reduced Furnace / Vessel Downtime • Reduced Curing & Dry-out With FAST FIRE Products • Increased OEE ( operating equipment efficiencies ) • Lower Operating Costs

  17. Shotcrete versus Gunnite – Physical Properties

  18. AGGREGATE KILN Kruzite 70 % alumina brick OPTISHOT 60 MINTEQ shotcrete shows 1.5 – 2.0” less wear than a 70 % alumina firebrick after 1 year in the feed end of the kiln. Both materials were installed at the same time.

More Related