HORN Annealing Lehrs, planned and manufactured at the HORN headquarters in Germany, stands for

high-quality production made in Germany.

 HORN offers its customers Annealing Lehrs as a turnkey solution including installation and commissioning. When it comes to plant repairs or modernisations of existing Annealing Lehrs - regardless of the original manufacturer – HORN is the perfect partner as a one-stop supplier for

your furnace project. Even an increase in the capacity of existing plants can be realised without any problems.

HORN® Glass Industries AG is a glass melting technology specialist who supplies the float and container glass industry with a wide range of high-quality individual products and turn-key plants. The high performance glass melting furnaces and turn-key plants are planned, built and delivered to glass manufacturers all over the world to produce beverage bottles, food containers,

drinking glasses, window panes, automotive glass, glass tubes, glass fibres or specialty glass.

 HORN®’s scope of service and supply:

• Melting technology and know-how

• The design of steel, refractory, piping, cabling, control systems and equipment

• Refractory supply

• Heat-up and Start-up

• Optimisation of melting process

• Trouble shooting

Electric furnace boosting systems have been effectively installed within the glass industry since 1970. With ist boosting systems, HORN® provides different boosting applications to meet challenging demands during the glass melting process. The individual electric boosting systems are tailor-made for each furnace regarding the required effect on the melting process. Each boosting system is unique and contributes to the most efficient and flexible operation of the furnace.

HORN® provides individual and tailor-made boosting systems:

• Melting boosting with side or bottom electrodes

• Barrier boosting

• Refining boosting

• Throat boosting

• Feeder boosting

HORN^® Glass Industries AG is the industry leader in turn-key plants.

HORN^®’s objective is to realise your project both economically and ecologically in accordance with your requirements. Your schedule as well as local requirements and conditions are important influencing factors. HORN^® supports you from the first rough draught, over realisation up to and including the permanent support of production, even after your glass plant is finished.

At HORN^®, we are specialists in realising the following turn-key glass plants:

• Float Glass Plants

• Container Glass Plants

• Cast Glass Plants

• Sodium Silicate Glass Plants

HORN hybrid furnaces are specially designed to combine the classic heating method of combusting a fossil fuel with the usage of more electric power by using electrodes in the melting tank. The high electric share leads to a reduction of the fuel consumption and therefore to lower temperatures in the superstructure. In combination with a lower flue gas volume (even more for an oxyfuel furnace), this requires a modification of the superstructure design and possibly of the refractory materials to avoid cold spots and the subsequent damage.
 
In the melting tank, a high number of electrodes are necessary. They can be installed as side or bottom electrodes depending on steelwork, position of burners, glass composition, etc. and preferably form “convection zones” in the tank. In these areas, the typical convection is preserved, despite the influence of all the electrodes, to support the melting process.

To some degree, a hybrid setup offers flexibility regarding the energy contribution between fossil and electric and also for the pull rate.

Currently, hybrid concepts are used for furnaces with smaller pullout of 50 to 400 t/d and/or specialty glass, but in general the maximum furnace size is approximately the same as for the classic fossil furnaces (750 t/d and even larger).

• Low energy consumption

• Low emission values

• Reduced NOx emissions

• Low investment cost for flue gas equipment due to low flue gas volume

• Easy adjustable temperature profile

• High flexibility during load change

• Flexibility regarding energy (fossil <-> electric)

• High specific melting output

HORN^® offers three types of combustion systems to handle most heating mediums. The complete combustion equipment is designed on ultramodern computer stations with AutoCAD/Inventor 3D. All HORN^® systems are completely preassembled, wired and tested in our workshops to guarantee the customers short time installations on-site and high quality.

BATCH CHARGER MODELS HVR®

The HVR® batch charger is used for furnaces with lateral or front end doghouses. HORN®’s batch charger type HVR® is the most classic and popular batch charger of HORN® Glass Industries AG on the market. There are three different types of it. The most common type HVR® F is available with five different chute widths, which all have individual charging performance, according to your requirements. Invented and constructed since the founding of HORN® Glass Industries AG, the HVR® is still the most popular and reliable batch charger for your glass plant. In order to fulfil the current regulations regarding NOx values and to save more energy when producing glass,

HEAT SHIELD

The heat shield, in combination with a refractory lined doghouse hood, seals the doghouse whereby secondary air supply is minimised. The heat shield also protects the batch charger from too much heat radiation.

CHARGING SYSTEM

The batch is evenly spread on the vibrating chute with the help of the charging hopper. The end piece of the vibrating chute is made of heat resistant steel and is exchangeable in order to avoid downtime if repair work is required. The movement of the water-cooled paddle is carried out by a lever system connected to a frequency controlled gear motor or servo drive. The paddle pushes the batch evenly from the vibrating chutes into the glass melting end and creates batch piles.

CO L D TOP BATCH CHARGER HVFE

The cold top batch charger is used for electrically heated furnaces. The batch charger is manufactured in a solid welded and screwed construction and runs in two axes – x and z – through two carriages. Each carriage is driven by a frequency controlled gear motor. In this way, the vibrating feeder moves just above the glass surface in the furnace and feeds parallel batch layers on top of the surface. Initiators monitor the positions of both axes of the charging machine. The charging machine is equipped with a batch hopper and level detectors. When the hopper is nearly empty, the charger moves automatically to a filling and docking station to be refilled.

F LOAT B ATCH CHARGER HFB

One of the latest batch chargers in HORN®’s product range is the float batch charger HFB, which is used to continuously feed the float glass furnace. The chargers are installed at the front part of the melting end at the doghouse across its full width. The operating element of the charger is driven by an electric motor. All batch chargers in the charging system are constructed identically. The float batch charger consists of a main frame and a mobile sub frame, which can be moved by means of four heavy duty castors. The machine is fixed to the position in front of the wall using floor mounts. The batch is supplied on the operating element from the special hopper located at the top of the furnace. The day silo, which is situated in front of the melting tank, feeds the batch into the funnel of the charging machine. The continuous lifting motion of the charging chute loads the batch into the doghouse area of the furnace. A driving unit powers the lifting motion.

Batch and cullet chargers are controlled in such a way that the glass level in the melting tank measured by the level control system is constant. The gap between the melting end and the chargers is covered over the total width of the doghouse and is executed in two parts. The charging quantity of the individual machine can be adjusted via a layer height adjustment.

HORN Gas Burners Dualflame

The HORN^® DUALFLAME gas burner is installed as an underport-burner in regenerative cross fired or end fired furnaces. Its design enables the furnace operator to adjust the flame formation smoothly within a wide range – from short and sharp to long and soft.

HORN Oil Burner MOB

The HORN^® MOB burner for oil is installed as under-port burner in regenerative cross fired or end fired furnaces. Its design enables the furnace operator to adjust the flame formation in two ways: the dimension of the oil nozzle and the dimension of the air nozzle. The performance adjustment and flame adjustment are executed by means of the relevant nozzle drillings.

HORN Hot Air Casing Burner HCB

The HORN^® industrial burner, type HCB, is a burner with an air casing containing a high temperature-resistant inner lining. Hereby the burner is damped against noise, becomes temperature resistant and is suitable for combustion air temperatures of up to max. 850 °C.

Since its establishment in 1991, JSJ Jodeit has become a leading and globally renowned supplier of systems for the production of speciality glass. The core competence of JSJ lies in the development, planning and realisation of melting furnaces, systems and components for the production of high-quality speciality glasses.  JSJ Jodeit GmbH has been a subsidiary of HORN Glass Industries AG since April 1, 2021.

Melting Furnaces

From concept development to turn-key services, JSJ manages projects of all sizes ensuring time to market, high quality standards and cost-effective completion.

Conditioning

The main task of conditioning systems during glass production is the homogenisation of the melt for the subsequent forming process.

Systems and Components

JSJ engineers take into account all aspects relevant to the lifetime and reliable function of core equipment for melting furnaces and glass conditioning systems. All components have been optimised by us over a range of individual applications in order to meet new requests and challenges.

D I ST R I B U TORS & FOREHEARTHS

Distributors and forehearths are glass conditioning systems, which are vital components of a glass melting plant. They are cooling, homogenising and forwarding the molten glass to the production machines. The HORN® glass conditioning systems allow

specific conditioning of the molten glass for each particular forming process while ensuring the highest possible temperature homogeneity (K-factor) of the gob. Glass conditioning always and without exception starts in the distributor and is continued and

completed in the forehearth. Therefore the HORN® distributors and forehearths are interconnected systems and are engineered as single units for the conditioning process.