The HORN HVR vibratory batch charger is a solid and reliable charger for cold batch into side or end-fired furnaces. The charger can therefore be used at regenerative, recuperative or oxy-fuel furnaces with a lateral or frontal open doghouse.
The operating principle is to feed the batch into the doghouse via a vibratory chute and push it onto the glass surface into the furnace via a water-cooled paddle. The end piece of the vibrating chute is made of heat resistant steel and is exchangeable.
A water-cooled paddle is situated at the end of the oscillating charging chute. The paddle pushes the batch evenly from the vibrating chutes into the glass melting end and creates batch piles, thereby accelerating the melting of the batch. The speed of the pusher is inverter-controlled. The stroke length and the submersion depth of the pushers can be adjusted manually. The paddle movement is carried out by a lever system to which a continuous controllable gearbox motor is connected.
The batch charger is fixed to a moveable carriage with a rotary frame. The frame turns on ball bearings which are fixed between the frame and the carriage. A controllable pneumatic cylinder causes the slewing motion of the rotating frame. The rotation of the charger improves the distribution of the batch piles inside the tank and accelerates the melting of the batch.
The charger must be installed in front of an open doghouse. A heat shield in combination with a refractory doghouse hood seals the doghouse, whereby secondary air supply is eliminated. The heat shield also protects the batch charger from excess heat radiation.