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Cement Industry Applications

Improve Cement Plant Efficiency with Proven Airlock & Slide Gate Technology

Plattco valves and slide gates are engineered to eliminate dust leakage and reduce downtime in demanding cement plant environments.

Contact Our Engineer Team

Cement Industry Applications Plattco Solves

Click on bullets to learn more about each application:

Additive Bins / Homogenization Silos

Product: MT Slidegate valve

  • Purpose is Silo discharge isolation
  • Atmospheric pressure
  • Ambient temperature
  • Heavy head load above valve
  • Custom sizes built to fit bin outlet dimensions
  • Customers choose Plattco for heavy duty design and ease of actuation open and closed
  • Typically taking the place of a pin gate – very difficult to install and remove pins
Contact a sales contactLearn more about MT Slidegate

Raw Mill Feed Valve

New Product in Development

  • Raw mill inlet airlock valve
  • Less than 1 PSI pressure differential
  • Up to 700 degrees F operating temperature
  • Flow rates around 350 TPH with large particle sizes of around 4" and lower
  • Purpose is to provide an airlock feed to the mill inlet – limiting the amount of cold fresh air allowed to enter the mill, increasing mill temperature and efficiency
  • 350 TPH valve feed rate, handling raw feed material up to 4" size
  • Competition are large custom built rotary valves and triple gate valves which don't seal well and cost the plant hundreds of thousands a year in maintenance
Contact a sales contact

Raw Meal Pneumatic Line Diverter

Product: HP Slidegate

  • Pneumatic line diverter valve to control flow of raw meal to different destinations
  • Temperature 200 F and below
  • Pressure up to 30 PSI
  • Installation orientation is critical to valve function
  • Purpose is to seal off pipeline to control direction of material flow
  • Competition are SK type diverter valves and other gate valve diverters which are not as reliable or maintenance friendly
Contact a sales contactLearn more about HP Slidegate
PHOTO: HP gates placed on the end of the SK style diverter valve acting as the Wye pipe.

Alternative Fuel Feed Airlock and Gate

Products: Double Flap Valve & MT Slidegate

  • Double flap valve is used as the airlock feeder into the calciner. MT Slidegate is used as the isolation device to prevent backflow of hot calciner gases
  • Competitive airlocks and gates struggle to handle the materials being fed due to irregular particle sizes and light densities
  • MT Slidegate isolation valve is applied separately from DFV when an airlock change is not requested
  • Pressure normally less the 1 PSI vacuum, upset condition could see 1 PSI positive pressure
  • Temperatures for upset conditions 1800 F for up to 36 hours
Contact a sales contactLearn more Our Double Flap ValvesLearn more about MT Slidegate
DIAGRAM: Plattco has a specific alternative fuel isolation gate valve design which has been applied in conjunction with many different types of fuel feed systems.

Coal Mill Feed Airlock Valve

Product: Double Flap Valve

  • Coal mill inlet airlock valve
  • Purpose is to provide an airlock feed to the mill inlet – limiting the amount of cold fresh air allowed to enter the mill, increasing mill temperature and efficiency
  • Temperature below 400 F
  • Pressure less than 1 PSI vacuum
  • Competition are large custom built rotary valves and triple gate valves which don't seal well and cost the plant hundreds of thousands a year in maintenance
Contact a sales contactLearn more about our Double Flap Valves
PHOTO: H-Series 16”, 18” and 24” valves typically applied to this application due to flow rates required.

Coal Mill Baghouse / Dust Transport

Product: Double Flap Valve

  • Coal mill baghouse discharge airlock valve
  • Purpose is to provide an airlock to the baghouse discharge
  • Common application to feed pneumatic conveying system to transport coal dust
  • Temperature below 200 F
  • Conveying system pressures up to 30 PSI in pneumatic conveying applications
  • Competition are rotary valves and small screw pumps – high cost of operation and maintenance
Contact a sales contactLearn more about our Double Flap Valves
PHOTO: Plattco Model H-1295 handling pulverized coal dust. This valve feeds coal into a 6" pneumatic conveying line to blow material to intermediate storage silos.

Pfister Feeder Isolation

Product: MT Slidegate

  • Pfister feeder isolation gate
  • Purpose is to shut off coal flow to rotary feeder above the Pfister injector
  • Temperature less than 200 F
  • Pressure below is Atmospheric
  • Competition are track "wafer" style slidegate valves which jam open or closed so cannot operate as isolation valves when needed
Contact a sales contactLearn more about MT Slidegate
PHOTO: MT-Series slidegate valve on floor 1 to reliably isolate coal feed to Pfister feed system.

Coal Injection Line Isolation Gate

Product: HP Slidegate

  • Coal injection line isolation gate for coal injection nozzle
  • Purpose is safety shut off for coal injection system
  • Competition are track "wafer" style slidegate valves which jam open or closed so cannot operate as isolation valves when needed
Contact a sales contactLearn more about HP Slidegate

Coal Mill Rejects

Product: Double Flap Valve OR  Slidegate Valve

  • Purpose is to act as an airlock on the coal mill rejects discharge chute
  • Temperature less than 400 F
  • Vacuum Less than 1 PSI  
  • Challenging application to handle stones and other tramp material
Contact a sales contactLearn more about MT SlidegateLearn more about our Double Flap Valves
LEFT PHOTO: S8-Series double flap valve handling coal mill rejects.
RIGHT PHOTO: MT-Series slidegate installed.

Clinker Cooler Under Grate (Old Style)

Product: Double Flap Valve

  • Purpose is to act as an airlock on the under grate hoppers of the clinker cooler
  • Temperature up to 700 F
  • Vacuum or positive pressure near 1 PSI  
  • Challenging application to handle extremely abrasive material on a 24/7 continuous basis
Contact a sales contactLearn more about our Double Flap Valves
PHOTO: H-Series valves are typical in this application, though some coolers use singlef lap S8-Series valves.

Hot Clinker Dust Cyclones

Product: Double Flap Valve

  • Purpose is to act as an airlock under the cyclone discharge
  • Temperature up to 700 F
  • Vacuum pressure near 1 PSI
  • Challenging application to handle extremely abrasive material on a  24/7 continuous basis
Contact a sales contactLearn more about our Double Flap Valves
PHOTO: PCV-Series under clinker dust cyclone.

Kiln Baghouse / Raw Mill Baghouse

Product: Double Flap Valve

  • Purpose is to act as an airlock under the baghouse
  • Temperature up to 400 F
  • Mechanical or pneumatic conveying system under valve to transport dust
  • Pneumatic transport – 15 PSI typical, mechanical transport – vacuum less than 1 PSI
  • Special cases utilize pneumatic conveying system with multiple pickup points
Contact a sales contactLearn more about our Double Flap Valves
PHOTO: H-Series valves feeding directly from the kiln baghouse discharge hoppers into a common pneumatic conveying line. This design saves hundreds of thousands of dollars in cost by lowering baghouse to the ground and eliminating mechanical conveyors, catwalks, and structural steel.

Clinker Conveyor Isolation

Product: MT Slidegate

  • Purpose is to act as a material shut off between clinker conveyor belts in the clinker transport system
  • Temperature 250 F
  • Pressure ambient
  • Challenging application to handle extremely abrasive material – closing through clinker with a normal track style slidegate valve is not possible
Contact a sales contactLearn more about MT Slidegate
PHOTO: MT-Series slidegate valve for clinkertransport system isolation point.

Clinker Silo Discharge

Product: Slidegate Valve

  • Purpose is to act as a material shutoff between clinker silo and transport system
  • Temperature 250 F
  • Pressure ambient
  • Challenging application to handle extremely abrasive material – closing through clinker with a normal track style slidegate valve is not possible
Contact a sales contactLearn more About our Slidegates

Dust Collectors in Finish Grinding Circuit

Product: Double Flap Valve

  • Purpose is to act as an airlock valve on the discharge of the dust collector
  • Temperature 250 F
  • Pressure -25" WC
  • Simple application handling abrasive and fine particle cement dust. Combination of nuisance dust collectors for PCV-Series valve and other larger process dust collectors with single flap gravity valves
Contact a sales contactLearn more about our Double Flap Valves
PHOTO: H-Series double flap valve with hinged camlock quick access cover on nuisance dust collector.

Finish Cement Air-Slide Ahutoff

Product: Slidegate Valve

  • Purpose is to act as a shutoff valve in air-slides to divert material flow
  • Temperature 250 F
  • Pressure -25" WC
  • Specific slidegate design to allow for material shutoff and an air channel under the valve to allow air to pass through to other sections of air-slide
Contact a sales contactLearn more About our Slidegates

Line Feeder for Finish Cement Pneumatic Transfer System (below 60TPH)

Product: H-SERIES Double Flap Valve

  • Purpose is to feed material at a controlled rate into the pneumatic conveying line
  • Temperature 250 F
  • Pressure – up to 30 PSI
  • Challenging application with high wear rates and high pressures. Typically taking the place of a small screw pump feeder or rotary valve
Contact a sales contactLearn more About our H-SERIES VALVES
PHOTO: Plattco Model H-1295 double feed point arrangement shown here to increase feed rates into the pneumatic conveying line by alternating cycling between each double flap valve for a combined rate of 12 cycles per minute.

Diverter Valve for Finish Cement Pneumatic Conveying Lines

Product: HP Slidegate

  • Purpose is to act as a shutoff valve in the pneumatic conveying line
  • Temperature 250 F
  • Pressure – up to 30 PSI
  • Challenging application with high wear rates and high pressures – especially when diverter is installed close to cement pump
Contact a sales contactLearn more about HP Slidegate
PHOTO: HP-Series slidegate valves are used invarious arrangements to provide diverter isolation in cement pneumatic conveying system transport lines.

Finish Cement Silo / Dome Discharge

Product: MT Slidegate VALVE

  • Purpose is to act as a shutoff valve under the silos
  • Temperature ambient
  • Pressure – up 5 PSI fluidizing pressure
  • High cycling rates for these valves as they are used to discharge material regularly to fill trucks or shut off feed airslides
Contact a sales contactLearn more about MT Slidegate
PHOTO: MT-Series gate under silo and feeding an airslide.

The world’s most reliable valve,

a Plattco Valve.

Mission

A US-based industrial valve manufacturer specializing in technical expertise and service to optimize dry material applications for customers globally.

Vision

Combining creative innovation with respect for traditional craftsmanship, we solve problems that keep materials flowing and economies growing.

Core Values

Industry-leading, collaboration, craftsmanship, community, passion for our company, our products, quality, and solving problems.

EMAIL: info@plattco.com
Phone: +1.518.563.4640

7 White Street, Plattsburgh, NY 12901

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