DESIGN OF A GLASS TANK FURNACE
Design of a regenerative and fired glass tank furnace of 200ton per day capacity to produce a sheet glass using furnace oil as fuel melted at 1500oC.
Given composition of the sheet glass-
Sio2 Al2O3 CaO MgO R2O Fe2O3
71 0.4 9 3 16 0.6
DIFFERENT PARTS OF A GLASS TANK FURNACE.
1. Doghouse assembly
2. Melting end
5. Conditioning and Refining end
7. Portsland Burneses
9. Temprature Measurments
10. Furnace video camera
11. Furnace cooling System
12. Furnace exhust system
13. Auxillary System
Sl.NO. | Refractories | Using Area | ...view middle of the document...
9. | Mag-Zir | Crown of regenerator | It has very high thermal conductivity. |
It is also known as float glass. Float glass is a term for perfectly flat and clear glass.
The raw materials are (silica sand, cao, soda lime, magnesia) are properly mixed and introduced in a FC where they are melted at 1500*c.
The molten glass then flows from the into the bath of a molten tin in a continuous ribbon.
The glass which is highly viscous and the tin which is very fluid do not mix and the contact surface between these two materials is perfectly flat. When it leaves the bath of molten tin,the bath has cooled down sufficiently to pass to an annealing chamber called a lehr.Here it is cooled at controlled temperature until it is essentially at room temperature.
I. Glass forming oxides-SiO2,B2O3,P2O5
II. Network modifiers or fluxes-Na2O,CaO,PbO,K2O,Li2O
V. Firing agents-Na2SO4
DIFFERENT PARTS OF FLOAT FURNACE
* Dog house
* Melting zone
* Refining zone
* Regeneration and flu line
* Neck combines main furnace to working end
* Filler and final shape is given
MATERIAL BALANCE AND ENERGY BALANCE
Basis: 1000 kg molten glass
REQUIRED GLASS COMPOSITION
Component | SiO2 | Al2O3 | CaO | MgO | Na2O | Fe2O3 |
Amount(%) | 71 | 0.4 | 9.0 | 3.0 | 16.0 | 0.6 |
Raw materials |...