LV10849B - Burner's assembly for glass melting furnace - Google Patents

Abstract

Invention refers to burner unit of a glass melting furnace consisting of channels for feeding warmed air and fuel feeding nozzles. It is offered to make burner unit comprising 2 burners with total width of air feeding channels between 0.5-0.6 parts of melting part width and their cross-section is the size that ensures air outflow speed between 4.5-6.0 m/s. The air feeding channel hearth angle rotating to horizon g=13-17 degrees, burners camber angle b=20-24 degrees and fuel feeding nozzles angle a=8-12 degrees. Such structure of the burner units ensure improvement of glass quality, increase of glass usage coefficient and the decrease of fuel consumption.<IMAGE>

Description

GLASS Melting Bathtub Burner Assembly

The invention relates to the glass industry, and more particularly to furnace burners for recuperative glass melting baths.

A glass melting furnace burner (SU aut. No. 12012337) is known which includes a device for supplying a fuel mixture and a refractory block with transition passages on one axis. The refractory unit is a composite unit consisting of a stationary and interchangeable part. The combustion mode is determined by the length and shape of the working channels. The heat output of the gas burners depends on the design of the burner assembly as well as on the gas and air flow rates in the combined injection burners, these closely interrelated and interdependent parameters in the hitherto known glass melting furnace burners are not sufficiently optimized production and economical fuel consumption, as well as deteriorate the development properties.

The object of the invention is to improve the quality of glass, increase the utilization rate of glass and reduce fuel consumption.

To achieve this goal, a design is proposed that takes into account both the design of the burner assembly itself and the rate of discharge of the heated air from the duct. Glass melting furnace burner assembly, consisting of heated air supply ducts and fuel nozzles comprising 2 burners, the total width of the air supply ducts being 0.5-0.6 parts of the furnace melting section width and providing a air velocity 4.5-6.0 m / sec. Clone angle γ of the air supply ducts is 13-17 ° to the horizon, the angle of the burner vault β is 2024 ° to the horizon and the fuel supply nozzle angle α is 8-12 ° to the horizon.

The design of the burner unit is intended for heating of recuperative glass melting furnace furnace with liquid fuel E glass. Such a bath oven consists of:

- a melting section which melts the batch at 1580-1620 ° C;

- a burner unit to provide fuel and heated air and to organize the combustion process;

- to heat the combustion air of the recuperator using the heat of the flue gas;

- production parts for the distribution of the glass mass across the feeders.

BRIEF DESCRIPTION OF THE DRAWINGS:

FIG. 1 - cross-section of the glass melting furnace;

FIG. 2 - section A - A Fig. 1.

The burner assembly consists of two channels (1) for the supply of heated air and the fuel supply nozzles (2) located below these channels.

The glass melting furnace burner operates as follows.

Fuel (for example, technical kerosene or furnace fuel) is fed through a pipeline under pressure to the fuel supply nozzles 2. At the same time, heated air is supplied to the channels 1 via the fans. The heated air temperature is 800-950 ° C, but the fuel parameters are provided at its preform unit and depend on the make of fuel used. When the jets of heated air come into contact with the jets of fuel, a combustion mixture is formed which burns, creating a long, strong flame that maintains a constant temperature throughout the furnace flame.

An economical technological process can be achieved by properly organizing the combustion process and the heat output of the flame to the glass. Therefore, it is very important to choose the air flow rate and the angles of the air and fuel supply as well as the width of the air supply ducts, which is also achieved by the proposed burner assembly design.

Claims (2)

5 1. A glass melting bath furnace burner assembly comprising ducts for supplying heated air and fuel feed nozzles, characterized in that: - burner assembly includes 2 burners, - the total width of the air ducts is 0.5-0.6 parts of the furnace The width of the 10 melting parts and their cross-section shall be such as to ensure an air outlet velocity of 4,5-6,0 m / sec, - the angle of the clone γ of the air supply ducts is 13-17 ° to the horizon, - the angle of the burner arch β is 20-24 ° to the horizon, - the fuel nozzle angle α shall be within 8-12 ° of the horizon.