[China Glass Network] Oxygen-enriched combustion technology is an energy-saving integration technology for various industrial boilers and furnaces. The oxygen-enriched technology uses the polymer membrane method to prepare 27-30% of oxygen-enriched air, that is, the permeation rate of each component in the air is transmitted through the polymer membrane, and the oxygen in the air is preferentially driven under the pressure difference driving. Obtain oxygen-enriched air with very stable oxygen concentration and flow rate.
The combustion-assisting technology uses a unique nozzle injection technology to ensure that the oxygen-enriched air enters the fuel combustion zone at a high speed without mixing with ordinary air, and obtains the same effect as the overall oxygenation without any side effects. Steel should be added to the blade. Oxygen enrichment should be added to the oxygen-demanding area so that the fuel can be fully and completely burned with less oxygen. For various types of fuel boilers, special oxygen-enriched nozzles are used, and combustion combustion technologies such as gradient combustion, symmetrical combustion, α-type combustion, S-type combustion, four-corner combustion, staged combustion, and unique jet technology are used to achieve local oxygenation and combustion support. Energy saving purposes.
Based on the research results at home and abroad, the use of oxy-combustion melting furnace melting technology has the following advantages:
(1) Improve the quality of melting
The use of oxy-combustion, especially in the melting zone of the furnace has a significant effect. In the production of glass melting furnace, the burning state of oil is better divided into three areas: the upper part of the flame is anoxic area, which can prevent the overheating of the big sputum; the middle part is the ordinary burning area; the lower part is formed as high temperature area as much as possible to strengthen the glass matching Melting of the material. The oxygen-enriched nozzle is installed at an appropriate position below the oil burner to speed up the burning speed, increase the flame rigidity and the flame close to the material layer, and improve the thermal efficiency of the flame. The temperature of the flame-radiating glass liquid can be increased by about 100 ° C, and the melting speed of the batch material is accelerated. Increase the melting rate by more than 10%. At the same time, the melting quality is also increased accordingly.
(2) Reducing the burning loss of the furnace
Oxygen-enriched combustion accelerates combustion, and the combustion process is basically completed in the kiln, and the combustible gas entering the regenerator is reduced to reduce the burning of the checker brick. The oxygen-enriched nozzle is installed in the lower part of the spray gun to divide the flame into two areas. In the lower part of the flame, the oxygen-enriched injection overcomes the phenomenon of oxygen deficiency, so that the temperature of the lower part of the flame is increased, and the temperature of the upper part of the flame is lowered, so that the temperature of the top of the furnace is lowered. Decreased to reduce the burning of the big cockroach. Extend the service life of the furnace, especially to create favorable conditions for the insulation of Dagu.
(3) Energy saving and consumption reduction
Oxygen is required for fuel combustion. It is usually supplied by oxygen in the air. In the combustion air, only oxygen accounts for 21% of the combustion, while the remaining 79% of the nitrogen does not participate in the combustion, which takes away a lot of heat and reduces the fuel. The effective utilization rate increases fuel consumption accordingly. Oxygen-enriched combustion makes heavy oil combustion more complete, reducing heavy oil consumption.
In general, the use of local aeration and combustion-supporting technology in glass furnaces not only significantly improves glass quality and output, but also saves energy and can extend furnace age, stabilize furnace conditions, reduce emissions such as soot and NOx, and can be installed without stopping the furnace. Mature technology, whether fuel or gas, has significant economic and social benefits.
In addition, the project also has good social benefits. A reduction in fuel consumption will significantly reduce emissions of fuel pollutants. The use of oxy-combustion technology to increase the oxygen content in the combustion air and reduce the nitrogen content, thus bringing many benefits to the environment.
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