Dosing Device

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Colouring Forehearths

1. Hopper
2. Dosing channel
3. Weighing pan
4. Conveying device
5. Pneumatic deduster (cyclone)
6. Filter
7. Water cooled feeding tube
8. Dust collector

Colouring agents, which insert the colouring product, are used for the colouring process. Copper, chrome, nickel, selenium, cobalt and other elements enable a wide range of colours. Various combinations of these elements extend the palette of colours even further.

In order to feed these colouring agents, a specially designed feeding unit needs to be installed. This feeding unit consists of several components:

A small batch hopper is used to store the colouring agents
A dosing chute feeds the adjustable quantity of agents from the hopper to a weighing pan
A special weighing socket weighs the exact quantity of colouring agent
A pneumatic deduster reduces the fine particles from the agent to prevent refractory corrosion
Charging funnels with distributor for single, double or triple charge, feed the agents through the roof of the forehearth onto the glass surface

Wider range of production possibilities
Wide colour range to meet most requirements
Free colour matching
High flexibility (small production series)
Faster re-colouring
Low discolouring
Good colour distribution
Lower energy consumption

COLOURING FOREHEARTHS

Do you have any questions? Then please do not hesitate to contact us.

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