The New Way to Look at Ovens

The conception behind the indoor outdoor oven.

Most companies are seeking to make more use of the floor space within their building and as we all know the installation of a Paint or Powder coating facility takes up up enormous amounts of floor space regardless of the output we wish to put through the system. A great amount of time has been spent looking for answers to this problem and there really is a solution,let us explain!

Firstly the option to be able to move the oven around without the long and costly job of dismantling and re-assembly is an advantage, but how about having the oven indoors?

Our answer? Design and Build one - and the best way to do that is construct an oven as normal but build it into a transport container, therefore, as containers come in various sizes from say 6 meters to 13 meters, we can design ovens to suit the container.

The unit as seen in photographs (Click on images to enlarge) is from a 6.1 metre container, the normal calculations used to establish air movement and heat required for the oven are adopted.

There are numerous applications that we can adopt this concept to, for example, conveyorised tunnel ovens single or multi pass, stacking one on top of another to allow drying above and cure beneath or alternate.

Model BKR20

Container overall dimensions: 6.1 meters x 2.440 wide x 2580 high

Procedure & Construction

To keep costs down we use whenever possible a pre-owned container, this is cleaned and blasted when required, then externally painted, the roof is re-sealed to eliminate any intrusion from water, etc.

The original doors are discarded - Apertures are then cut into the structure to form the basis of Fan, burner and explosion relief sections.

The internal construction: using our own design of internal wall fixings (that keep the metal to metal contact between inner and outer walls to a minimum) reduces the transfer of heat from within the oven to the external walls.

The walls are then lined with RW5 100mm thick high density insulated slabs and then skinned over with either galvanised sheets or on request stainless steel. (Stainless steel lining does increase the costs) and would only be required in a specialised application.

Floor insulated with RW5 and covered again in Galvanised sheet sleeves to protect the insulation materials are inserted in all apertures that are to house associated parts such as burners, fans and explosion relief sections.

New doors are constructed in the same design as oven walls with heavy duty furniture to secure fixing and closing mechanism.

Internal ducting is then designed and manufactured to accommodate the input hot air and feed along the full length of one side of the oven at low level with the air returning to the re-heat chamber at the rear of the oven on opposing side, this proves to provide an even distribution of air through the entire oven.

The Burner and Circulating fans are calculated to provide efficient operation and allow temperatures to be maintained to cure Powder,with turn down facilities when used for wet spraying cure/dry.

Effective operating area of the Model BKR20

Door aperture: 2.1 meter wide x 2.22 high

Clear operating depth at floor 5.65 meters x 1.94 wide.

Either floor mounted rails to allow work trolley to be maneuvered with ease or roof mounted support steel for suspending of products and manual dead conveyor are options on handling (the latter dead conveyor is an extra).

Variations and advantages:

As indicated on page one modules range from 6 meters to 13 meters.

External usage: when the oven is to be sited outside the building weather protection cowls are fitted over all exposed operating parts to protect against the elements.

The control panel can be attached remote to the oven with a simple plug and socket lead. This allows the oven to be controlled from within the building whilst the oven is outside.

The modulated forms are so versatile that they can be connected end to end to form any length of oven required.

The adaptability of this system allows for conveyer type on line operation in either single or multiple pass operation,together with the ability to stack two high allowing even more floor space saving (see drawings above).

External installation: would require a gas supply terminating on the outside of the building,where either a armored gas approved flexible or solid connection would be made. Gas isolating valve would be required both internally and externally for the installation.

Whilst stacking a system when using within a building saves considerable floor space and allows a fully on line system where it would have been impossible to fit, installing outside if ground area allows even more space inside that can be utilised for manufacture, storage or admin areas.

We have shown in this literature options as to access to the oven from within the building, keeping factory security to the forefront.

See selection of add on and extras available:

Extras to cost of main unit:

If fitted inside a building, there will be a cost of supply and fitting a fume duct to atmosphere.

If doors are required at both ends of the oven,then a modified burner and air distribution fan will be required, this would be either a roof or side mounted fully insulated box construction and sealed to weather ingression if oven is fitted outside.

Dead conveyors in box ovens, would be supplied to carry capacity of products.

Access ramps built to required height, width and length, box section frame and chequered floor plate.

Work trolley,size and carry to suit application.

Pneumatic lift platform for entry exit oven again to carry capacity.

Main building security gates to secure property when unattended stopping access to building via break in through explosion panels of oven (when attached directly to building).

All prices of above are subject to site survey.

All ovens are built to operate on natural gas, LPG is available and a minimal additional cost of £200 per burner may apply.

Prices vary on the main ovens according to ancillary equipment used, e.g. either refurbished burners and fans or supplied new.

Customers are invited to supply their own Container, this would require inspection by one of our consultants before approval by ourselves.

All commissioning of ovens is undertaken to Corgi requirements and certificated, we must emphasize that if the unit is to be repositioned at some time in the future it must be re- certificated before use. (this section would be addressed in your written quotation)

Installation and delivery normally completed in one day, subject to customer bringing suitable services to isolating point adjacent to oven site.

Design patent applied for.

AWR Plant
Methwold
Thetford
Norfolk

Tel: 01638 718884

Mob: 07903 747893

Fax: 05603 106779