Industrial Curing Oven

Vertical oven with for curing. Here: example of a curing oven for the production of brake parts for the automotive industry.


Overall dimensions :
- Length 6,00 m
- Width 5,00 m
- Height 5,50 m
Tray dimensions :
- Length 1 200 mm
- Width 1 200 mm
- Height 150 mm
- Feeding height 850 – 1050 mm


- Capacity of convected heated air flow 20 000 m³/h
- Capacity of extracted air flow 600 m³/h
- Capacity of cooled air flow 8 000 m³/h

Gas burner, heating power installed 300 kW


DESCRIPTION
1 – Conveying and transfer components:
- A tubular welded structure frame made out of mild steel.
- A 2 positions alternate rotary table, guided with bearings, driven by gear motor with speed controller and mechanical stop for positioning.
- One electric lifting table will allow the loading and unloading of the trays inside and outside the tower. When lifting, the lifting table will push the tray positioned under the tower into the ascending tray stack. When descending, the table will take over a cooled tray from the descending tray stack; an electric pusher will transfer the tray under the oven towards the rotary table.
- Four doubled catchers will allow the stacking of the trays in the lifting column of the tower and the un-stacking of the trays from the descending column.
- A transfer trolley located at the top of the tower will move the uppest tray from the lifting tray stack to the descending tray stack. This device will be guided with vertical and lateral rollers with high temperature ball bearings and motorized by a pneumatic cylinder positioned outside the tower.
- Customized trays, each one measuring L1200 mm *W1200 mm*H150 mm. 2 piles of 20 stacked trays/pile=40 trays spread on two zones, one heating z. and one cooling z. 5 supplementary trays in transit zones (oven entrance, exit, conveying z.). Total supply of 45 trays.
- A belt drive system with encoder for the different transfers and positioning further running mode/ cleaning or emptying modes. Giving for example the possibility of unloading the total quantity of trays from the rear of the vertical oven. In cleaning or emptying mode, the trays will be positioned on a drawer transferring them to the rear of the oven for handling etc

 2 – One Vertical Oven for the Curing and Cooling including:
- One heavy duty structure with tubular welded profiles out of mild steel.
- One thermal insulation with mineral glass fibres panels of 50 mm thickness, ensuring efficient operation, low external temperatures and excellent thermal stability.
- One inner casing made of mild steel sheets, welded air proof in continuous. Adjustable air fins all along the tower will allow to even the air distribution, ensuring good temperature uniformity.
- One outer casing made of steel sheets finished in tough epoxy paint (RAL colour to defined by the customer). No contact between the inner and the outer casing minimizes heat dissipation.
- Maintenance doors on each side enabling convenient and complete access to the inside of the oven. A silicone rubber gasket provides a good seal between the doors and the inner casing. The insulation and the gasket are asbestos free.
- An internal centrifugal fan for heated air circulation. The high air flow speeds up the curing process and evens the temperature distribution. The air will be blown from left to right on all the height and width of the internal casing.
- Two internal centrifugal fans for cooling.
- Manual dampers for the adjustment of air inlet (fresh air) and outlet (wasted air). Adjustments made in factory for future use
- The heat source is a gas burner (Maxon) with direct flame, modulating, incl. accessories ensuring its secure and reliable functioning. The gas burner contains sequential programming with flame monitoring (responding to the EU norm 746-2).
- Temperature control sensors for controlling the hot air and cooling areas and excess temperature protection device.
- A set of internal and external gateway used for maintenance and cleaning. A caged ladder and safety guards will allow access on the top of the oven.
3 - Electricity – Automation:
- One electrical panel, including :
o A temperature regulator; type EUROTHERM 3508.
o A speed controller for the rotation table .
o A Siemens S7 1500 PLC.
o Relays, protections, push buttons, pilot lights, circuit breakers.
o Operator interface display HMI (12”); type Siemens
o Emergency stop.
o Interface Profinet PN
4 – Technical documentation:
- Technical files including :
o General drawings in a DWG format.
o Part list following Excel format.
o Electrical and pneumatic schemas further See Expert format.
o Functional analysis.
o Operator manual.
o Maintenance manual.
o CE certificate.
Files in Word format, in English language, 1 paper copy and 1 electronic format.