Glass Tempering Furnace

Brief introduction & equipment features

► The furnace includes loading table, heating section, quenching& cooling section, unloading table, and control system. It is used to temper flat glass for architecture, furniture, home appliance, etc. The working flow: glass loading  heating  quenching  cooling  unloading.

► Power saving: Matrix type heating wire distribution, exposed heating wire of upper furnace body, short heating time and fast production capacity are adopted. Scanning control is adopted for heating power, each scanning period is 3 seconds, so that the fluctuation of power supply network current is small. After adjusting the power required by the actual production process, the transformer with smaller capacity could be used to supply power.  For example, the total power of heating furnace is 1000Kw, which can be working with only 630KVA transformer.  Good heat preservation effect. In normal production, the temperature of furnace wall (square tube near ceramic roll) is less than workshop room temperature + 22 degrees.

► Less air spot. Adopts patent technologies to improve the tempering quality.

► Quick installation and diagnosis: adopts direct insertion connector to speeding up the installation and reducing wiring errors and shorten the installation greatly; as well as remote control device equipped with the equipment.

► Service: with rich International experience in technologies and services, so we ensure customers a lifetime technical support and spares. 

► Loading section, heating furnace, flat quenching section and unloading section are equipped with independent driven system, their speed i adjusted via inverter and controlled by PLC automatically, working mode is shifted automatically.

► Opening and closing of electric heating furnace, opening and closing of upper and lower air grids and balance adjusting of air pressure are all driven by motor; total air pressure adjustment is controlled by computer system; and frequency start-up and control is used for blower.   

► The main drive of this furnace is equipped with protective emergency manual glass release function in case of power failure and automatic alarm in case of insufficient voltage and failure.

► The air quenching adopts four different angles with a width of 50 mm. When the aluminium alloy air quenching 4 mm glass, the air pressure in the passage period is about 6500 PA (about 8000 PA is needed for narrow air quenching), so that the glass flatness can be easily controlled and the blower current can be reduced, thus saving electricity and controlling the glass flatness easily.

► Wind grids in both passing and cooling sections can be adjusted independently (adjustable range is 50mm), so it is very convenient to adjust glass flatness.

► There is a slag clearing hole at the front end of each air grid. When the production time is longer, impurities and dust in the air grid will block the air nozzles. After removing the slag clearing hole, it is very convenient to clean up the impurities and dust in the air grid.

► The alarm inspection system monitors the operation status of the equipment systematically, such as automatic alarm when the equipment fails, and increase the monitoring of all motor operation status of the whole equipment on the general basis, such as automatic alarm if the motor is damaged or tripped (including furnace body elevator motor, windshield elevator motor, fan cooling fan, etc.); and Monitor the operation status of industrial computer, such as industrial computer will automatically alarm when it crashes. Each group of heating wire is also monitored. If the heating wire is abnormal, it will automatically alarm and cut off the power supply of the heating wire.            

► Out-of-furnace inspection. The system automatically checks the glass loading length of each furnace when glass is out of the furnace. If the glass is small or the glass is blocked at the exist door of the furnace, it will automatically alarm and stop the next loading automatically.  

► Breakage-proof function is specially designed to protect the furnace, there would be no breakage when processing 10-19 mm glass.