Flotation Dryer for Paper Laminating Line

Cire Technologies, Inc. has successfully designed, fabricated and started-up a new custom flotation dryer for a new paper laminating line.  The dryer was delivered completely assembled, requiring very little installation cost.  It was delivered on time and on budget.

Installed Floatation Dryer

The dryer supports the web on air for twelve feet.  Characteristics of the dryer include:

  • Flotation nozzles above and below the web. The gap between upper and lower nozzles is adjustable and was set at 3/8 inches. The nozzles and supply plenum are fabricated out of stainless steel, the balance of the dryer is aluminized steel, per the customer’s request.

Floatation Dryer figure 2

  • The dryer can operate up to 400° Heat is provided by a Maxon Corporation, Ovenpak, natural gas nozzle burner. The complete burner system including the gas train and controls was shop mounted onto the dryer.  This vastly simplified the field installation for the customer, requiring only the delivery of power and natural gas to the dryer and the installation of exhaust ductwork from the dryer to the exhaust fan and through the roof.

Drive Side of the Dryer Prior to Shipping

  • Five inches of insulated wall panels provide a cool dryer exterior. Use of perforated metal between wall skins eliminate the potential of exterior skin hot spots.
  • The dryer system works together with the converting machinery controls, using Allen Bradley I/O modules to communicate with the line PLC. Complete control over the dryer is achieved through the operator touchscreens, supplied by the converting machinery supplier. We worked closely with the machinery supplier to complete a turn-key installation.

Controls and Gas Train During Assembly - Note AB I/O Lower Right Corner of Panel

  • Allen Bradley variable speed drives on the supply and exhaust fans allow for operator flexibility to match the dryer performance to the product being run. These are controlled through the operator HMI touchscreen discussed above.
  • An IR temperature sensor looking at the web in the last foot of the dryer provides real-time indication of the temperature of the web leaving the dryer. The exit temperature is a good tool to fine-tune the dryer operating parameters for each product.
  • Screw jacks on the operator and drive side of the dryer enable the top half of the dryer to be raised up to eighteen inches above the lower half. This makes threading and cleaning maintenance easy. Interior flexible ducts between upper and lower halves of the dryer are used to convey the supply and recirculated air between sections.

 Dryer Retracted During Shop Assembly

For more information on how Cire Technologies, Inc. can build a custom dryer for you please Click Here.

Coating Head Enclosure Humidification System

Cire Technologies, Inc. recently completed a humidification system in Michigan to humidify a large coating head enclosure.  The humidification system was designed to provide a constant level of humidification to the enclosure to improve the coating environment and help minimize the posibility of fires in the enclosure, due to static charges.

The customer had experienced an enclosure fire and subsequent substantial financial loss from the fire.  Our system, along with other enclosure improvements recommended by Cire Technologies, Inc., was designed to help eliminated the potential for future fires.

Our humidification system included improvements to the enclosure exhaust system, electric humidifier, a supply air system to control the rate of make-up air supplied to the enclosure to replace the existing vents in the wall of the enclosure, and a fully automated system to control the level of humidification in the enclosure.

The successful system was supplied on time and on budget.


Metal Coil Processing Impingement Dryer

Dryer for Metal Coil Processing

Fives ST dryer 3Cire Technologies is proud to announce it has completed the design and fabrication of a metal coil dryer to be utilized by a metal finishing company in Mississippi.

The dryer utilizes hot air, direct impingement, both above and below the metal coil to remove the water retained from previous processing.

All interior surfaces of the dryer are fabricated out of stainless steel.  The housing includes four inches of insulation and an aluminized steel exterior skin.

The dryer was completely assembled, wired and piped before shipping.  A Maxon Corporation, Ovenpak, natural gas burner provides the heat for the dryer and the gas train components and flame safeguard are manufactured by Honeywell.Fives ST control panel interior resized

Both the supply/ recirculating air and exhaust air fans include Allen Bradley variable speed drives, which are connected to the main control system utilizing Ethernet protocol.  An Allen Bradley I/O module is included to connect the dryer control system to the production line control system.

The project was completed on time and on budget.

New Heating Systems for Repurposed Flotation Dryers

Cire Technologies, Inc. has extensive experience modifying and repurposing existing equipment.  We recently designed, fabricated and installed new heating systems for four repurposed Worldwide flotation dryer zones for a Connecticut film converting company.  The four zones were used to create two lines of forty-foot drying for aqueous coatings.

The system included four burner boxes with Maxon Ovenpak, natural gas burners.  Temperature control for each zone is independent.

Because of limited space, eight airfoil supply air fans were used: one feeding the top nozzles and one feeding the bottom nozzles of each zone.  The fans for each zone are controlled by variable speed drives to provide flexibility to the dryers’ operation.

Since the dryer boxes’ upper halves retract up to eighteen inches, the design enables the top supply fan and recirculating ductwork to retract with the upper half of the existing dryer zones. 

Ductwork and the burner box were fabricated with stainless steel interior skins, protected by up to four inches of insulation and a 20-gage aluminized exterior skin.

The project also included two exhaust fans and the associated ductwork to deliver the exhaust from each line to atmosphere.

Complete gas trains and controls, utilizing Honeywell flame safeguard and gas train components, were incorporated with the burner box skids to simplify the installation.  Cire Technologies, Inc. also included Allen Bradley I/O modules for each zone to communicate with the line web coating and handling equipment, provided by others.  This enabled the dryers to be integrated with the line control system and HMI.

The entire project from design to completed installation and commissioning was completed on time and on budget.

For more information on how Cire Technologies, Inc. can work with you to update or repurpose existing equipment, please click the Quick Connect or Request Info buttons found on this page.

Replacement Heat Exchanger Pass for Recuperative Thermal Oxidizer

Cire Technologies is pleased to announce the completion the replacement of a recuperative thermal oxidizer heat exchanger pass.

This replacement heat exchanger was the third (hot side) pass of a 12,000 scfm recuperative unit in Massachusetts.  The heat exchanger is a stainless steel tube design that included provision for the high temperature thermal expansion of the tubes and head plate seals to prevent cross contamination of the air streams.


Cire Technologies was responsible for the complete turnkey project including design, fabrication and installation of the tube and shell heat exchanger.  In addition Cire Technologies supplied and installed replacement insulation between this heat exchanger pass and the oxidizer burner.  The project was delivered on time and on budget.

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