300 tpd, Glass Melting Furnace, Large Capacity Glass Melting
Furnace
1. Brief Description
Glass melting is the most important process in glass production, it
is a forming process where the batched materials form a qualified
liquid evenly with no bubbles under high temperature heating.
Glass melting is a very complex process, it includes physical,
chemical and physicochemical phenomena and reaction. These
phenomena and reaction lead the mechanical mixed raw materials to
complex melting glass liquid.
Glass liquid forming
In this stage, the sinter will be melting and the silicate and SiO2
in sinter will change to flint glass liquid with a plenty of
bubbles. However, its chemical components and character are not
even.
Clearing
The glass liquid is continuously heated, and its viscosity is
reduced with plenty of gaseous sundries released, which should
eliminate the visible bubbles with the pool of liquid.
Homogenization
The glass liquid is kept at high temperature for a long time, the
ripple eliminates by diffused function and homogenizes as a whole.
The temperature of homogenization can be lower than the clearing
stage.
2. Furnace structure
It is the part which melts batched materials and Clearing and
homogenizes glass liquid. In the upper space of the melting section
is referred to as the flame space, the lower part is melting tank.
Batched materials feed into the furnace through dog house, the heat
is transferred via flame space to the glass liquid.
The heated air and gas flow into the pre-combustion room for mixing
via this access after they flow out of the regenerator. This is
also an access for the flue gas to flow into the regenerator from
the flame space.
It is an important part of furnace, it is the place where the fuel
is mixed with the preheated air, also an access for the preheated
air in to the furnace and exhausting the waste gas out.
3. Furnace melting technology system
Furnace melting technology includes temperature, pressure,
bubbling, glass liquid level, fuel, reversing system etc.
The temperature means the temperature the of melting tank, not the
whole furnace. The distribution of temperature is from the melting
tank through the length of the furnace.
Furnace pressure is the static pressure of the gas system, which is
determinate by pressure distribution curve.
| Item | Description |
| Temperature | The temperature means the temperature the of melting tank, not the
whole furnace. The distribution of temperature is from the melting
tank through the length of the furnace. |
| Pressure | Furnace pressure is the static pressure of the gas system, which is
determinate by pressure distribution curve. |
| Bubbing | Stable shape and position of bubble are an important sign to
estimate the melting performance, which will also affect the
production capacity of furnace and quality of glass liquid. |
