gt-forni-equipment

EQUIPMENT • GLASS LEVEL MEASURING SYSTEMS • STIRRERS • BOOSTER • BURNERS • THROAT BOOSTER • BUBBLERS

GLASS LEVEL PNEUMATIC MEASURING SYSTEM • High accuracy level detection, typically within ± 0.1 mm • Easy and reproducible height adjustment • Easy and quick probe replacement • Electrically earth-insulated probe available for furnaces with booster

Main Features • Turret suitable to support the glass level probe • Manually adjustable height with graduated scale and position indicator • Water-cooled glass level probe • Pneumatic panel

Glass Level E.A.G.Le. 2.0 Evo The electronics is fully contained in the process camera • Working Principle: E.A.G.Le allows measuring the glass level through the optical reflection of a fixed pointer mounted out of contact with glass • How it is made: It is composed of a fixed steel pointer (water-cooled probe) in INCONEL and a video camera (water-cooled) placed in a rigid industrial casing.

• How it works: It acquires and processes the images through the video camera using advanced algorithms managed by an Artificial Vision software running in the microprocessor control unit. The real and virtual pointer reflected images are acquired at high frequency enabling thus to establish the actual level of the glass with absolute precision.

Technical features Measurement Field

from -15 to +15 mm

Resolution

higher than ± 0.05 mm

lmage Elaboration

30 frames/sec.

Pointer and Camera Cooling

demineralized water

• • • • • • •

No contact with glass nothing in movement Absolute level meAsure Easy to install Maintenance-free Self-calibrating Vibration-proof

Equipment

• GLASS LEVEL MEASURING SYSTEMS • STIRRERS • BOOSTER • BURNERS • THROAT BOOSTER • BUBBLERS

3-Position batch charger

A

B B' Pushing FIX

A' Retracting FIX

• 3 different charging positions • Minimum manual operationsA B A' • From the control panel it is possibleB' to set Pushing Retracting the number of pulses of the pusher in one direction Variable Variable • Less manual setup • Pusher stroke: easy setup from control panel

FULLY ELECTRONIC BATCH CHARGER A

B B' Pushing FIX

A

A' Retracting FIX

B B' Pushing Variable

A' Retracting Variable

• It gets over all the mechanical limits • Servo-motor driven pusher • Rotation angle and rotation sequence setting by keyboard • No limits on charging position • Automatic loading control • Batch quantity setup: indipendent setting of pusher stroke and velocity • Remote machine setup from control panel in control room • No mechanical interventions required For each rotating turret position it is possible to choose • Batch quantity • The shape of the pile • The opening of the bin • The pusher impulse

Manufactured by

GAS AND HEAVY FUEL-OIL FIRING SYSTEM • • •

The GT Burners series are used in end-fired and cross-fired glass melting furnaces where the combustion chamber is located above the molten glass bath and enclosed in refractory walls.

Combustion air is preheated by regenerators before being delivered to the furnace so that the air flow can create the appropriate flame geometry. Further adjustments are possible by controlling the condition of the gas supplied to the chamber.

High efficiency low NOx flame EASILY adjustable flame shape and LENGTH Easy angle and position adjustement with our GTBS support

• Easy to clean and maintain • No air leakage between refractory blocks and burners by means of cast iron sealing plates • Different sizes suitable to be installed on any regenarative furnace

OIL

GAS

BURNER TYPE

FLOW RANGE

PIPE

PRESSURE RANGE

(Ncm/h)

ø gas

(mBar)

Underport

MIN

MAX

MIN

MAX

GTEF250

80

250

2"

50

200

GTEF400

130

400

2"1/2

50

200

GTEF750

250

750

3"

50

200

Stirrer With BDF stirrer mechanisms it is possible to achieve better quality in glass homogenization and better production flexibility of coloring forehearths.

• Sliding bracket motion for easy maintenance or refractory parts replacement • Different configuration up to 4 stirrers • Independent rotation for left/right 4-stirrer group • Same rotation or counter rotation for each stirrer • Remote electronic control for speed and direction

Cat scratch removal system Cat Scratch Removal System: thanks to its characteristics, it allows a complete dispersion of the zircon cord, which is homogenized into the molten glass, thus eliminating the visual defect.

• Independent rotation clockwise or anticlockwise for each unit • Independent speed variation for each unit • Controlled by remote control panel • Side rotation on the vertical sliding axis for easy refracory unit replacement

before

after

BOOSTER SYSTEM • Bottom - Sidewall • Medium voltage - Low voltage • Pull increase • Glass quality increase • NOx emission reduction

• Stability of furnace operation • Increase of the minimum residence time of glass in the melting area • Complete of all necessary installation accessories

THroat booster The throat booster system is a safety system used to avoid the glass freezing in the throat during the furnace heat-up and/or when the production is stopped and no glass is flowing through the throat.

• Required power: 60 kW approx (during normal operation, the system is switched off) • Power supplied by two molybdenum bottom electrodes in glass • The electrodes are supported by a special water-cooled holder • A thermocouple is installed on the holder to detect the temperature

BUBBLER

The bubbler principle is to blow a small amount of air into the glass bath in order to obtain a vertical glass current from bottom to top. The air bubbles lift upwards the colder glass from the bottom.

• It generates big improvement of the glass current • Effective push-back batch force • Better heat exchange between flames and glass • It increases the pull and the glass quality mainly for colored glass melting

BDF in the world

companies representative offices

MOSCOW

MÜNCHEN

SHANGHAI MEXICO CITY

foshan

BDF CZECH

BUENOS AIRES

MCR SYSTEMS

BDF

BDF SERVIS

TDE MACNO

studiobrand.it

GTECH

www.bdf.it BDF INDUSTRIES S.p.A. - Head Office and Sales Department Via dell’Industria, 40 - 36100 Vicenza - Italy phone +39 0444.286.100 - fax +39 0444.286.299 - e-mail: bdf@bdf.it Glass Technologies S.r.l. - Technical Department Via J. Massarenti, 9 - 29122 Piacenza - Italy phone +39 0523.623.058 - fax +39 0523.609.785 - e-mail: info@glasstechnologies.it

Manufactured by