GLASS INDUSTR IES

H ORN Bau & Service

GmbH is the executive

division on the construction

site. The unique working con-

ditions, such as the extreme

temperatures, call for a team of

highly qualified specialists and

experts - such as those at HORN

Bau & Service GmbH.

HORNService Division

E N G I N E E R E D I N G E R M A N Y

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Heating up of the furnace and dust free cullet charging

In many cases glass draining involves controlled cooling, i.e. the

temperature of the melting end is decreased until the furnace is

accessible. Controlled cooling is essential so that parts of the

plant, such as the melting end crown etc. are preserved.

Refractory damages can only be avoided by means of controlled

cooling.

During controlled cooling (or heating) any change of crown

height is controlled by means of a sensor or a probe. Both the

crown movement and the furnace temperature are supervised.

High precision bricklaying gua-

rantees the customer a furnace

with a long lifespan and many

years of trouble-free operation.

In addition to traditional furnace

construction, HORN Bau &

Service GmbH undertakes steel

construction on an international

scale.

HORN Bau & Service GmbH

offers its customers:

● Service around the furnace

● Steel and refractory con-

struction

● Site supervision

● Commissioning, hot work

● Heating up of the furnace

and dust free cullet charging

● Tapping of the furnace

including drilling

● Thermal regenerator

cleaning

● Installation and exchange of

electrode holders during

production

● Patching of the flux line as

well as the throat of the

furnace

● Shaped block manufacturing

and installation

● Fast and clean placing of

openings in brickwork walls

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Tapping of the furnace including drilling

Before any repair or maintenance takes place, the controlled

tapping of the furnace must be undertaken.

To do this, a number of holes are drilled at various points in the

furnace using a specialised water cooled drill.

The flow rate can be regulated using an adjustable, water cooled

damper. It is mounted directly in front of the holes and, amongst

other functions, stops the glass flow if necessary.

The hot glass flowing out of the furnace is lead to a refractory

lined funnel via a gutter. The glass is fritted by adding water,

after which it is lead away from the furnace through a series of

gutters. HORN specialists have in fact constructed gutter systems

of over 70 m in length.

Thermal regenerator cleaning

This is one of the methods for improving the efficiency of the

regenerator. During the lifespan of a furnace, condensation of

the dust that results from the melting process can lead to

clogging in the checker works.

The thermal regenerator cleaning entails heating instruments

being installed in the regenerator beneath the rider arches and

raising the temperature of the regenerator to such a degree that

the condensation melts and flows down the shafts to the rege-

nerator basement. Great care must be taken when applying this

method since negligence can lead to damage of the rider arches.

Since the control and operation of the instruments call for a

great deal of experience as well as state-of-the-art technical

equipment, customers are well advised to consult specialists such

as the HORN staff.

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Horn Bau & Service GmbH is part of the

HORN GLASS INDUSTRIES AG group of companies.

Bergstrasse 2 • D-95703 Ploessberg • Germany

Tel: + 49 (0) 96 36 / 92 04 - 0 • Fax: + 49 (0) 96 36 / 92 04 -10

E-mail:info@hornglas.de • URL: www.hornglas.de

Bau & Service GmbH

Examples of use:

● Repair of rat holes

● Sawing out washouts in regenerator

walls and relining

● Placing of openings for cleaning

purposes

● Placing of peepholes

● Opening of port arch in order to

insert a damper

● Openings for connections

Advantages:

● Work is possible during hot state

● AZS cutting also possible

● Vibration free placing of openings

● Clear-cut edges allow tight sealing

● Saves time and money

● Little space required

Fast and clean brickwork openings

Apart from conventional drilling HORN

Bau & Service GmbH use a new diamond

saw with hydraulic drive and water coo-

ling system.

With it, openings up to 580 mm deep

may also be sawn into high-density

materials. The ambient temperature

during operation may be up to 200° C

while the temperature on the inner side

of the wall may be up to 1600° C.

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